A novel process for obtaining magnesium from sea water involves several reactions. Write a balanced chemical equation for each step of the process. (a) The first step is the decomposition of solid calcium carbonate from seashells to form solid calcium oxide and gaseous carbon dioxide. (b) The second step is the formation of solid calcium hydroxide as the only product from the reaction of the solid calcium oxide with liquid water. (c) Solid calcium hydroxide is then added to the seawater, reacting with dissolved magnesium chloride to yield solid magnesium hydroxide and aqueous calcium chloride. (d) The solid magnesium hydroxide is added to a hydrochloric acid solution, producing dissolved magnesium chloride and liquid water. (e) Finally, the magnesium chloride is melted and electrolyzed to yield liquid magnesium metal and diatomic chlorine gas.

chemistry


Which statement best distinguishes between stakeholders and teams in the project management domains?

computer_science


Describe freshwater, ocean, and terrestrial ecosystems.

biology


The nurse understands that a particular regulatory agency is responsible for ensuring that drugs are safe and effective. What is its name?

nursing


The conscious perception of pain is often delayed because of the time it takes for the sensations to reach the cerebral cortex. Why would this be the case based on propagation of the axon potential?

biology


Is Gerhard Lenski right in classifying societies based on technological advances? What other criteria might be appropriate, based on what you have read?

sociology


T-independent antigens can stimulate B cells to become activated and secrete antibodies without assistance from helper T cells. These antigens possess ________ antigenic epitopes that cross-link BCRs.

biology


mathematics


Which of the following doesnotdescribe a form of slavery traditionally practiced in Africa? a system in which those in need of supplies or protection give themselves in servitudea system in which debtors repay those whom they owe by giving themselves in servitudea system in which people are treated as chattelâthat is, as personal property to be bought and solda system in which people are enslaved permanently on account of their race

history


Tedâs firm reported net income for the current period of $65,750. Is it safe to assume that because Tedâs firm reported such a large net income, it has plenty of cash to fund its operations? Why or why not?

business


It is 4:00. What time will it be in 100 hours?

mathematics


What characteristics differentiate lizards and snakes?

biology


Is inflation likely to be a problem for at least some low- and middle-income economies in the near future?

economics


Suppose concerns about the size of the federal budget deficit lead the U.S. Congress to cut all funding for research and development for ten years. Assuming this has an impact on technology growth, what does the AD/AS model predict would be the likely effect on equilibrium GDP and the price level?

economics


Explain the meanings of key variables in lifespan development research, such as gender, socioeconomic status, and ethnoracial identity. How do these variables influence research findings? Provide examples from the text to illustrate how each variable is defined and its impact on research outcomes.

psychology


Sketch the structures of the following complexes. Indicate any _cis_ , _trans_ , and optical isomers. (a) [Pt(H 2 O) 2 Br 2 ] (square planar) (b) [Pt(NH 3 )(py)(Cl)(Br)] (square planar, py = pyridine, C 5 H 5 N) (c) [Zn(NH 3 ) 3 Cl] + (tetrahedral)(d) [Pt(NH 3 ) 3 Cl] + (square planar)(e) [Ni(H 2 O) 4 Cl 2 ] (f) [Co(C 2 O 4 ) 2 Cl 2 ] 3− (note that \text{C}_{2}\text{O}_{4}{}^{2-} is the bidentate oxalate ion, - \text{O}_{2}\text{CCO}_{2}{}^{\text{−}})

chemistry


In a “first office action,” the examiner usually does which of the following?    A. Allows all the claims in the patent application.   B. Rejects some claims and/or requests further information.   C. Rejects the entire application.

business


How much heat is produced when 100 mL of 0.250 M HCl (density, 1.00 g/mL) and 200 mL of 0.150 M NaOH (density, 1.00 g/mL) are mixed?HCl(aq)+NaOH(aq)â¶NaCl(aq)+H2O(l)ÎHÂ°=â58kJHCl(aq)+NaOH(aq)â¶NaCl(aq)+H2O(l)ÎHÂ°=â58kJ If both solutions are at the same temperature and the specific heat of the products is 4.19 J/g Â°C, how much will the temperature increase? What assumption did you make in your calculation?

chemistry


Two teenagers are pulling on ropes attached to a tree. The angle between the ropes is 30.0\text{°} . David pulls with a force of 400.0 N and Stephanie pulls with a force of 300.0 N. (a) Find the component form of the net force. (b) Find the magnitude of the resultant (net) force on the tree and the angle it makes with David’s rope.

physics


Indicate the most important types of intermolecular attractions in each of the following solutions: (a) The solution inFigure 11.2. (b) NO(l) in CO(l) (c) Cl2(g) in Br2(l) (d) HCl(g) in benzene C6H6(l) (e) Methanol CH3OH(l) in H2O(l)

chemistry


If a constant, nonzero force is applied to an object, what can you say about the velocity and acceleration of the object?

physics


Discuss how minorities and women can use resources and strategies to deal with their additional challenges as entrepreneurs.

business


[LO 6.2](6-2-describe-and-identify-cost-drivers) Which is _not_ a step in analyzing the cost driver for manufacturing overhead?    A. identify the cost   B. identify non-value-added costs   C. analyze the effect on manufacturing overhead   D. identify the correlation between the potential driver and manufacturing overhead

business


Which of the following isnotone of the three forms of county government? the commission systemthe council-elected executive systemthe mayor-council systemthe council-administrator system

political_science


Food with an umami flavor likely contains which essential nutrient?

psychology


A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 30.0º above the horizontal. It strikes a target above the ground 3.00 seconds later. What are the x and y distances from where the projectile was launched to where it lands?

physics


True or false? The design of corporate campuses is meant to enhance opportunities for employees to collaborate.

business


economics


business


mathematics


Two point charges are brought closer together, increasing the force between them by a factor of Y. By what factor was their separation decreased?

physics


In what ways are lobbyists regulated?    A. Certain activities are prohibited.   B. Contributions must be disclosed.   C. Lobbying is prohibited immediately after leaving office.   D. all the above

political_science


Some animals use diffusion instead of a circulatory system. Examples include:

biology


Write a Lewis structure for each of the following molecules and ions: (a) (CH3)3SiH (b)SiO44âSiO44â (c) Si2H6 (d) Si(OH)4 (e)SiF62âSiF62â

chemistry


Which investment offers high rates of return with reduced risk?

mathematics


Offer and explain a skeptical hypothesis.

philosophy


Identify the property of real numbers illustrated here:87.4+0=87.4.

mathematics


Explain why the neutralization reaction of a strong acid and a weak base gives a weakly acidic solution.

chemistry


Momentum for a system can be conserved in one direction while not being conserved in another. What is the angle between the directions? Give an example.

physics


Write the symbol for each of the following ions: (a) the ion with a 1+ charge, atomic number 55, and mass number 133 (b) the ion with 54 electrons, 53 protons, and 74 neutrons (c) the ion with atomic number 15, mass number 31, and a 3− charge (d) the ion with 24 electrons, 30 neutrons, and a 3+ charge

chemistry


The ________ is the part of the eye that is damaged due to _Acanthamoeba_ keratitis.

biology


[LO 4.4](4-4-use-the-ledger-balances-to-prepare-an-adjusted-trial-balance) Which of the following accounts’ balance would be a different number on the Balance Sheet than it is on the adjusted trial balance?    A. accumulated depreciation   B. unearned service revenue   C. retained earnings   D. dividends

business


What changed in our understanding of the Moon and Moon-Earth system as a result of humans landing on the Moonâs surface?

astronomy


All of the following are methods to enforce an arbitrator’s decision except:    A. Writs of Execution.   B. Garnishment.   C. Fines.   D. Liens.

business


How has the inequality of income changed in the U.S. economy since the late 1970s?

economics


The plane that passes through points \left( {0,1,5} \right),\left( {2,-1,6} \right),\ \text{and}\ \left( {3,2,5} \right).

mathematics


Why is it unlikely that humans will be traveling to Io? (Hint: Review the information about Jupiterâs magnetosphere inThe Giant Planets.)

astronomy


LO3.6Analyze Trusty Companyâs trial balance and the additional information provided to determine the following: what is causing the trial balance to be out of balanceany other errors that require corrections that are identified during your analysisthe effect (if any) that correcting the errors will have on the accounting equation A review of transactions revealed the following facts: A service fee of $18,000 was earned (but not yet collected) by the end of the period but was accidentally not recorded as revenue at that time.A transposition error occurred when transferring the account balances from the ledger to the trial balance. Salaries expense should have been listed on the trial balance as $64,500 but was inadvertently recorded as $46,500.Two machines that cost $9,000 each were purchased on account but were not recorded in company accounting records.

business


What stops oligopolists from acting together as a monopolist and earning the highest possible level of profits?

economics


mathematics


According to Sibley, how do people justify aesthetic judgments?

philosophy


The dwarf galaxy in Sagittarius is the one closest to the Milky Way, yet it was discovered only in 1994. Can you think of a reason it was not discovered earlier? (Hint: Think about what else is in its constellation.)

astronomy


LO11.2What are one advantage and one disadvantage of the payback method?

business


What defined republicanism as a social philosophy?

history


What would happen if the trophoblast did not secrete hCG upon implantation of the blastocyst?

biology


Write a formula for each of the following compounds: (a) silicon dioxide (b) silicon tetraiodide (c) silane (d) silicon carbide (e) magnesium silicide

chemistry


What type of attachment is displayed by an infant who is indifferent to their caregiverâs leaving and returning?

psychology


Ionizing radiation can penetrate surfaces, but nonionizing radiation cannot.

biology


\frac{\sin\left( {2x} \right)}{\sin\; x} - \frac{\cos\left( {2x} \right)}{\cos\; x} = \sec\; x

mathematics


In a linear regression, why do we need to be concerned with the range of the independent (X) variable?

business


What is the role of individualsâ families in your community before and after marriage?

anthropology


The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the basis of the finding that:

biology


Repeat the seesaw problem in [Example 9.1](9-2-the-second-condition-for- equilibrium) with the center of mass of the seesaw 0.160 m to the left of the pivot (on the side of the lighter child) and assuming a mass of 12.0 kg for the seesaw. The other data given in the example remain unchanged. Explicitly show how you follow the steps in the Problem-Solving Strategy for static equilibrium.

physics


Why is code optimization sometimes specific to a given HLL?

computer_science


[LO 1.1](1-1-define-managerial-accounting-and-identify-the-three-primary- responsibilities-of-management) Carlita believes an important part of the planning process for managers is being sure to position the company to achieve its goals. She thinks that positioning is an extensive concept and can depend on the right information and that managerial accountants assist in positioning the company. Is she correct? Explain.

business


Golgi tendon organs extend sinuous sensory fibers that intermingle with the ________ fibers making up muscle tendons. Thus, when muscles engage increasing ________, these sensory devices inform us of this (which can be considerably useful to unconscious appreciation of which limb currently holds our body weight during walking).

psychology


The vastus intermedius muscle is deep to which of the following muscles?

biology


True or FalseâKinetic friction is less than the limiting static friction because once an object is moving, there are fewer points of contact, and the friction is reduced. For this reason, more force is needed to start moving an object than to keep it in motion.

physics


Describe the main differences between C-type and S-type asteroids.

astronomy


\mathbf{\text{F}}(x,y,z) = e^{x}\mathbf{\text{i}} + e^{xy}\mathbf{\text{j}} + e^{xyz}\mathbf{\text{k}}

mathematics


During the 1976 election campaign, Jimmy Carter famously promised ________.    A. that he would never start a war   B. that he would never be unfaithful to his wife   C. that he had never smoked marijuana   D. that he would never lie

history


The mass of the atom \mspace{9mu}_{9}^{19}\text{F} is 18.99840 amu.(a) Calculate its binding energy per atom in millions of electron volts. (b) Calculate its binding energy per nucleon.

chemistry


A stationary coil is in a magnetic field that is changing with time. Does the emf induced in the coil depend on the actual values of the magnetic field?

physics


Which of the following isnotone of the rights the Bill of Rights guarantees? the right to freedom of speechthe right to an educationthe right to bear armsthe right to a trial by jury

history


Describe and compare the rings of Saturn and Uranus, including their possible origins.

astronomy


mathematics


Briefly describe the relationship among consumer savings, purchasing power, and inflation.

business


If the star Sirius emits 23 times more energy than the Sun, why does the Sun appear brighter in the sky?

astronomy


A 20-mH inductor is connected across an AC source with a variable frequency and a constant-voltage amplitude of 9.0 V. (a) Determine the reactance of the circuit and the maximum current through the inductor when the frequency is set at 20 kHz. (b) Do the same calculations for a frequency of 60 Hz.

physics


Oxyhemoglobin forms by a chemical reaction between which of the following?

biology


Can improved engineering and materials be employed in heat engines to reduce heat transfer into the environment? Can they eliminate heat transfer into the environment entirely?

physics


Which of the following isnotpart of the rights and responsibilities of a sick person under the functionalist perspective?

sociology


If a chemical disinfectant is more effective than phenol, then its phenol coefficient would be ________ than 1.0.

biology


biology


Integrated Concepts Singly charged gas ions are accelerated from rest through a voltage of 13.0 V. At what temperature will the average kinetic energy of gas molecules be the same as that given these ions?

physics


Calculate[HgCl42â][HgCl42â]in a solution prepared by adding 0.0200 mol of NaCl to 0.250 L of a 0.100-MHgCl2solution.

chemistry


What characterizes those most likely to vote in the next election?

political_science


Under what circumstances would a minimum wage be a nonbinding price floor? Under what circumstances would a living wage be a binding price floor?

economics


Identify the subshell in which electrons with the following quantum numbers are found: (a)n= 3,l= 2 (b)n= 1,l= 0 (c)n= 4,l= 3

chemistry


What are the components of cardiac output?

nursing


Describe the three processes involved in the esophageal phase of deglutition.

biology


Suppose that a rectangular toroid has 2000 windings and a self-inductance of 0.040 H. If h = 0.10\ \text{m} , what is the current flowing through a rectangular toroid when the energy in its magnetic field is 2.0\ \times \ 10^{-6}\ \text{J}?

physics


mathematics


economics


For the following isotopes that have missing information, fill in the missing information to complete the notation (a)1434X1434X (b)X36PX36P (c)X57MnX57Mn (d)56121X56121X

chemistry


If you wanted to live where the chances of a destructive earthquake were small, would you pick a location near a fault zone, near a mid ocean ridge, near a subduction zone, or on a volcanic island such as Hawaii? What are the relative risks of earthquakes at each of these locations?

astronomy


The formation of pyrimidine dimers results from which of the following?    A. spontaneous errors by DNA polymerase   B. exposure to gamma radiation   C. exposure to ultraviolet radiation   D. exposure to intercalating agents

biology


[LO 16.1](16-1-explain-the-purpose-of-the-statement-of-cash-flows) Which of the following statements is false?    A. Noncash activities should be reported in accrual basis financial statements.   B. Net cash flow from operating activities relates to normal business operations.   C. Net income usually equals net cash flow from operating activities.   D. The statement of cash flows is an essential part of the basic financial statements.

business


Although problem-focused coping seems to be a more effective strategy when dealing with stressors, do you think there are any kinds of stressful situations in which emotion-focused coping might be a better strategy?

psychology


Systemic blood pressure must stay above 60 so that the proper amount of filtration occurs.

biology


What type of reflex can protect the foot when a painful stimulus is sensed?

biology


The nurse is assessing a child with bowed legs. Which vitamin deficiency should the nurse anticipate is related to this disorder?

nursing


What do adverse selection, moral hazard, and voter suppression have in common when it comes to elections?

political_science


What is the relational and communal character of Confucian ethics?

philosophy


The Bring it Home Feature discusses the use of cowrie shells as money. Although we no longer use cowrie shells as money, do you think other forms of commodity monies are possible? What role might technology play in our definition of money?

economics


What percentage of businesses last five years or more?

business


Explain what will happen in a nation that tries to solve a structural unemployment problem using expansionary monetary and fiscal policy. Draw one AD/AS diagram, based on the Keynesian model, for what the nation hopes will happen. Then draw a second AD/AS diagram, based on the neoclassical model, for what is more likely to happen.

economics


Altruism is a form of prosocial behavior that is motivated by ________.

psychology


Describe a minimum of two ways that plants changed the land environment to support the emergence of land animals.

biology


Technetium-99 is often used for assessing heart, liver, and lung damage because certain technetium compounds are absorbed by damaged tissues. It has a half-life of 6.0 h. Calculate the rate constant for the decay of {}_{43}^{99}\text{Tc}.

chemistry


Describe one or more scenarios where loss of hormonal regulation of digestion can lead to diseases.

biology


What is the relation between the amplitude of a wave and its speed?

physics


mathematics


If you take two steps of different sizes, can you end up at your starting point? More generally, can two vectors with different magnitudes ever add to zero? Can three or more?

physics


Can a wire carry a current and still be neutral—that is, have a total charge of zero? Explain.

physics


Which of the following isnotan aspect of globalization?

sociology


To compare the brightness of light bulbs for sale in a store, you should look on the labels to see how they are rated in terms of ____.

physics


If most people have rational expectations, how long will recessions last?

economics


Find the work done in the quasi-static processes shown below. The states are given as (p, V) values for the points in the pV plane: 1 (3 atm, 4 L), 2 (3 atm, 6 L), 3 (5 atm, 4 L), 4 (2 atm, 6 L), 5 (4 atm, 2 L), 6 (5 atm, 5 L), and 7 (2 atm, 5 L).

physics


A payment in some form (cash or noncash) for an act that runs counter to the legal or ethical culture of the work environment is called ________.    A. insider trading   B. bribery   C. illegal transaction   D. manipulation

business


________ is most effective in individuals that are very open to the power of suggestion.

psychology


How would the graph inFigure 9.13change if the number of moles of gas in the sample used to determine the curve were doubled?

chemistry


LO5.1How would process costing exist in a service industry?

business


Draw the line of best fit on the scatter plot.

mathematics


Before the advent of modern imaging techniques, scientists and clinicians relied on autopsies of people who suffered brain injury with resultant change in behavior to determine how different areas of the brain were affected. What are some of the limitations associated with this kind of approach?

psychology


Explain the difference between a Django project and a Django web application.

computer_science


Consider social, political, and economic equality. In what ways did Radical Reconstruction address and secure these forms of equality? Where did it fall short?

history


Is it likely that life ever existed on either Venus or Mars? Justify your answer in each case.

astronomy


LO6.6The following is select account information for August Sundries. Sales: $850,360; Sales Returns and Allowances: $148,550; COGS: $300,840; Operating Expenses: $45,770; Sales Discounts: $231,820. If August Sundries uses a multi-step income statement format, what is their gross margin?

business


List the different levels of the taxonomic classification system.

biology


Your ear is capable of differentiating sounds that arrive at the ear just 1.00 ms apart. What is the minimum distance between two speakers that produce sounds that arrive at noticeably different times on a day when the speed of sound is 340 m/s?

physics


What is the probability density function?

mathematics


A scientist notices that a cancer cell line shows high levels of phosphorylated ERK in the absence of EGF. What are two possible explanations for the increase in phosphorylated ERK? Be specific in which proteins are involved.

biology


mathematics


Convert the boiling temperature of gold, 2966 Â°C, into degrees Fahrenheit and kelvin.

chemistry


Why do some seeds undergo a period of dormancy, and how do they break dormancy?

biology


The elastic properties of the arteries are essential for blood flow. Explain the importance of this in terms of the characteristics of the flow of blood (pulsating or continuous).

physics


Which region of the vertebral column has thegreatestrange of motion for axial rotation?

biology


One type of BB gun uses a spring-driven plunger to blow the BB from its barrel. (a) Calculate the force constant of its plunger’s spring if you must compress it 0.150 m to drive the 0.0500-kg plunger to a top speed of 20.0 m/s. (b) What force must be exerted to compress the spring?

physics


Suppose there are three stars in space, each moving at 100 km/s. Star A is moving across (i.e., perpendicular to) our line of sight, Star B is moving directly away from Earth, and Star C is moving away from Earth, but at a 30Â° angle to the line of sight. From which star will you observe the greatest Doppler shift? From which star will you observe the smallest Doppler shift?

astronomy


List some arguments for and against the likelihood of convergence.

economics


Find the probability thatonereview will take Yoonie from 3.5 to 4.25 hours. Sketch the graph, labeling and scaling the horizontal axis. Shade the region corresponding to the probability.

mathematics


Some controversial groups that may be mislabeled as cults include:    A. Scientology and the Hare Krishna   B. the Peoples Temple and Heaven’s Gate   C. the Branch Davidians and the Manson Family   D. Quakers and Pentecostals

sociology


In adults, new connective tissue cells originate from the ________.

biology


Why are the primary and secondary coils of a transformer wrapped around the same closed loop of iron?

physics


A plane flies north at200m/swith a headwind blowing from the north at70m/s. What is the resultant velocity of the plane?

physics


Which social class do you and your family belong to? Are you in a different or same social class than your grandparents and great-grandparents? Why are you in the class you are? What changed? What stayed the same? Marriages? Acquisition of property? Education? Career changes? Reflect on your familyâs journey within the classes.

sociology


An experimenter detects 251 fringes when the movable mirror in a Michelson interferometer is displaced. The light source used is a sodium lamp, wavelength 589 nm. By what distance did the movable mirror move?

physics


Allergy shots work by shifting antibody responses to produce ________ antibodies.

biology


A graphic worksheet that sets forth the value proposition of any startup and allows you to identify stakeholders, and key inputs and outputs is the ________. business model generatorbusiness model canvasbusiness mobility canvasbusiness meditation and creativity matrix

business


(a) How long will it take an 850-kg car with a useful power output of 40.0 hp (1 hp equals 746 W) to reach a speed of 15.0 m/s, neglecting friction? (b) How long will this acceleration take if the car also climbs a 3.00-m high hill in the process?

physics


According to terror management theory, how do people react when they feel their sense of self is being threatened, such as by thoughts of their own death?

psychology


mathematics


For an element to be regarded as essential, all of the following criteria must be met, except:

biology


What are five sources of evidence commonly used in philosophy? Which of these are empirical? Which do not require observation or experiment?

philosophy


Explain what will happen to the money multiplier process if there is an increase in the reserve requirement?

economics


For each pair of standard free energy change and electron stoichiometry values below, calculate a corresponding standard cell potential. (a) 12 kJ/mol, n = 3 (b) â45 kJ/mol, n = 1

chemistry


Explain the need for tall towers on a suspension bridge to ensure stable equilibrium.

physics


Go outside on a clear night, wait 15 minutes for your eyes to adjust to the dark, and look carefully at the brightest stars. Some should look slightly red and others slightly blue. The primary factor that determines the color of a star is its temperature. Which is hotter: a blue star or a red one? Explain

astronomy


biology


(a) What is the speed of sound in a medium where a 100-kHz frequency produces a 5.96-cm wavelength? (b) Which substance in [Table 17.1](17-2-speed-of-sound) is this likely to be?

physics


You are tasked with maintaining the infrastructure to provide security for your organizationâs information system. As part of this process, why would you rely on standard ISO/IEC 27001 for guidance?

computer_science


How can the prominences, which are so big and âfloatâ in the corona, stay gravitationally attached to the Sun while flares can escape?

astronomy


LO13.3A company issued bonds with a $100,000 face value, a 5-year term, a stated rate of 6%, and a market rate of 7%. Interest is paid annually. What is the amount of interest the bondholders will receive at the end of the year?

business


The electron volt (eV) is a convenient unit of energy for expressing atomic-scale energies. It is the amount of energy that an electron gains when subjected to a potential of 1 volt; 1 eV = 1.602ÃÃ10â19J. Using the Bohr model, determine the energy, in electron volts, of the photon produced when an electron in a hydrogen atom moves from the orbit withn= 5 to the orbit withn= 2. Show your calculations.

chemistry


Find the maximum potential difference between two parallel conducting plates separated by 0.500 cm of air, given the maximum sustainable electric field strength in air to be {3.0 \times \text{10}^{6}}\ \text{V/m} .

physics


One way to state Boyleâs law is âAll other things being equal, the pressure of a gas is inversely proportional to its volume.â (a) What is the meaning of the term âinversely proportional?â (b) What are the âother thingsâ that must be equal?

chemistry


Which is the stronger acid, HClO4or HBrO4? Why?

chemistry


Express the \beta decays n\rightarrow p + e^{\text{−}} + \overset{\text{−}}{\nu} and p\rightarrow n + e^{+} + \nu in terms of \beta decays of quarks. Check to see that the conservation laws for charge, lepton number, and baryon number are satisfied by the quark \beta decays.

physics


Explain what happens to the energy carried by light that it is dimmed by passing it through two crossed polarizing filters.

physics


An image of a 2.0 -cm object reflected from a mirror is 5.0 cm tall. What is the magnification of the mirror?

physics


Ecologists often attempt to introduce new plants to restore degraded land. In an arid climate, scientists recommend introducing plants with arbuscular mycorrhizae. How would the mycorrhizae increase the plantsâ survival compared to plants without mycorrhizae?

biology


A 0.500-kg mass suspended from a spring oscillates with a period of 1.50 s. How much mass must be added to the object to change the period to 2.00 s?

physics


Which of the following is not an example of sensory enrichment during early development that can promote synaptic connectivity?

psychology


A person who stopped breastfeeding suddenly is experiencing breast engorgement and leakage, just like they did in the first few weeks of breastfeeding. Why?

biology


Why are diverging mirrors often used for rear-view mirrors in vehicles? What is the main disadvantage of using such a mirror compared with a flat one?

physics


An outdoor WiFi unit for a picnic area has a 100-mW output and a range of about 30 m. What output power would reduce its range to 12 m for use with the same devices as before? Assume there are no obstacles in the way and that microwaves into the ground are simply absorbed.

physics


Could an individual with blood type O (genotypeii) be a legitimate child of parents in which one parent had blood type A and the other parent had blood type B?

biology


The ability of a muscle to generate tension immediately after stimulation is dependent on:

biology


How does desensitization work? What causes it to happen?

psychology


The Henry’s law constant for CO 2 is 3.4 \times 10 −2 _M_ /atm at 25 °C. Assuming ideal solution behavior, what pressure of carbon dioxide is needed to maintain a CO 2 concentration of 0.10 _M_ in a can of lemon-lime soda?

chemistry


(a) Using the information in the previous problem, what velocity do you need to escape the Milky Way galaxy from our present position? (b) Would you need to accelerate a spaceship to this speed relative to Earth?

physics


mathematics


If information is protected as a valid trade secret, a competitor can be stopped from using it no matter who he obtained it from. True or False?    A. True.   B. False.

business


Titan, with a radius of2.58Ã106m, is the largest moon of the planet Saturn. If the mass of Titan is1.35Ã1023kg, what is the acceleration due to gravity on the surface of this moon?

physics


Jaguars are a keystone species in the Amazon. Describe how they can be so essential to the ecosystem despite being significantly less abundant than many other species.

biology


The core of a star collapses during a supernova, forming a neutron star. Angular momentum of the core is conserved, so the neutron star spins rapidly. If the initial core radius is 5.0\ \times \ 10^{5}\ \text{km} and it collapses to 10.0 km, find the neutron star’s angular velocity in revolutions per second, given the core’s angular velocity was originally 1 revolution per 30.0 days.

physics


A particle at rest leaves the origin with its velocity increasing with time according to _v_ ( _t_ ) = 3.2 _t_ m/s. At 5.0 s, the particle’s velocity starts decreasing according to [16.0 – 1.5( _t_ – 5.0)] m/s. This decrease continues until _t_ = 11.0 s, after which the particle’s velocity remains constant at 7.0 m/s. (a) What is the acceleration of the particle as a function of time? (b) What is the position of the particle at _t_ = 2.0 s, _t_ = 7.0 s, and _t_ = 12.0 s?

physics


Which of the following protests was directly related to federal policies, and thus had the greatest impact in creating a negative public perception of the Hoover presidency? the Farm Holiday Associationthe Ford Motor Company labor strikesthe Bonus Expeditionary Forcethe widespread appearance of âHoovervilleâ shantytowns

history


[LO 9.3](9-3-describe-the-types-of-responsibility-centers) Explain the benefits of a return on investment structure within an investment center framework. It may help to think of an example using an existing company.

business


Integrated Concepts (a) A large electrical power facility produces 1600 MW of “waste heat,” which is dissipated to the environment in cooling towers by warming air flowing through the towers by 5\text{.}\text{00ºC} . What is the necessary flow rate of air in \text{m}^{3}\text{/s} ? (b) Is your result consistent with the large cooling towers used by many large electrical power plants?

physics


Describe the hybridization of silicon and the molecular structure of the following molecules and ions: (a) (CH3)3SiH (b)SiO44âSiO44â (c) Si2H6 (d) Si(OH)4 (e)SiF62âSiF62â

chemistry


Analysis of what particles began the search for the Higgs boson?

physics


Do you think a linear fit is best? Why or why not?

mathematics


Describe the structure and complementary base pairing of DNA.

biology


The toxic pigment called white lead, Pb 3 (OH) 2 (CO 3 ) 2 , has been replaced in white paints by rutile, TiO 2 . How much rutile (g) can be prepared from 379 g of an ore that contains 88.3% ilmenite (FeTiO 3 ) by mass?   2\text{FeTiO}_{3} + 4\text{HCl} + \text{Cl}_{2}\ \longrightarrow\ 2\text{FeCl}_{3} + 2\text{TiO}_{2} + 2\text{H}_{2}\text{O}

chemistry


An older man retires from his job, stops golfing, and cancels his newspaper subscription. After his wife dies, he lives alone, loses touch with his children, and stops seeing old friends. His situation most closely illustrates the _______ theory.

sociology


Presidential approval ratings ________ over a presidentâs term of office.

political_science


Given a circuit with one 9-V battery and with its negative terminal connected to ground. The two paths are connected to ground from the positive terminal: the right path with a 20-Î© and a 100-Î© resistor and the left path with a 50-Î© resistor. How much current will flow in the right branch?

physics


How was theMars Odysseyspacecraft able to detect water on Mars without landing on it?

astronomy


Cancer results when a mutation leads to which of the following?    A. cell death   B. apoptosis   C. loss of cell-cycle control   D. shutdown of the cell cycle

biology


What are specific examples of business architecture similarities between two banks?

computer_science


In which direction do the magnetic field lines point outside the south pole of a magnet?

physics


What were the fundamental differences between the Federalist and Democratic-Republican visions?

history


The smallest unit of an element that still retains the distinctive behavior of that element is an ________.

biology


Why do we use average force while solving momentum problems? How is net force related to the momentum of the object?

physics


Which atom and/or ion is (are) isoelectronic with Br + : Se 2+ , Se, As – , Kr, Ga 3+ , Cl – ?

chemistry


How can a cell use an extracellular peripheral protein as the receptor to transmit a signal into the cell?

biology


y\prime = e^{\text{−}y}\text{sin}\mspace{2mu} x

mathematics


9\;\sin\;\omega - 2 = 4\mspace{9mu}\sin^{2}\omega

mathematics


Why are UV, x rays, andÎ³Î³rays called ionizing radiation?

physics


What is the difference between rational expectations and adaptive expectations?

economics


Why is conscience the locus or center of ethical behavior in business?

business


A human factors psychologist who studied how a worker interacted with a search engine would be researching in the area of ________.

psychology


Decreased sensitivity to an unchanging stimulus is known as ________.

psychology


Which of the following is the organelle that spirochetes use to propel themselves?    A. plasma membrane   B. axial filament   C. pilum   D. fimbria

biology


Solve for _x_ if \log_{64}(x) = \frac{1}{3} by converting the logarithmic equation \log_{64}(x) = \frac{1}{3} to exponential form.

mathematics


A bottle of soda with a temperature of \text{71°} Fahrenheit was taken off a shelf and placed in a refrigerator with an internal temperature of \text{35° F}\text{.} After ten minutes, the internal temperature of the soda was \text{63° F}\text{.} Use Newton’s Law of Cooling to write a formula that models this situation. To the nearest degree, what will the temperature of the soda be after one hour?

mathematics


philosophy


You have discovered two star clusters. The first cluster contains mainly main-sequence stars, along with some red giant stars and a few white dwarfs. The second cluster also contains mainly main-sequence stars, along with some red giant stars, and a few neutron starsâbut no white dwarf stars. What are the relative ages of the clusters? How did you determine your answer?

astronomy


computer_science


What are three examples of specialized careers for individuals who work in cloud computing?

computer_science


Offer one Gettier case and explain how it works.

philosophy


Which contains the compounds listed correctly in order of increasing boiling points? (a) N2< CS2< H2O < KCl (b) H2O < N2< CS2< KCl (c) N2< KCl < CS2< H2O (d) CS2< N2< KCl < H2O (e) KCl < H2O < CS2< N2

chemistry


Using the dissociation constant,Kd= 3.4ÃÃ10â15, calculate the equilibrium concentrations of Zn2+and OHâin a 0.0465-Msolution ofZn(OH)42â.Zn(OH)42â.

chemistry


A bottle of water contains 12.05 fluid ounces with a standard deviation of 0.01 ounces. Define the random variableXin words.X= ____________.

mathematics


Why would investors require access to financial statements?

business


With reference to waves, what is adisturbance?

physics


What differentiates a social entrepreneurial enterprise from a traditional entrepreneur?

business


The ionization constant for water (Kw) is 2.9ÃÃ10â14at 40 Â°C. Calculate [H3O+], [OHâ], pH, and pOH for pure water at 40 Â°C.

chemistry


LO2.2Explain the concept of relevant range and how it affects total fixed costs.

business


Complete the following partial ICE tables. (a) 2SO3(g)â2SO2(g)+O2(g)change______+x2SO3(g)â2SO2(g)+O2(g)change______+x (b) 4NH3(g)+3O2(g)â2N2(g)+6H2O(g)change___+x______4NH3(g)+3O2(g)â2N2(g)+6H2O(g)change___+x______ (c) 2CH4(g)âC2H2(g)+3H2(g)change___+x___2CH4(g)âC2H2(g)+3H2(g)change___+x___ (d) CH4(g)+H2O(g)âCO(g)+3H2(g)change___+x______CH4(g)+H2O(g)âCO(g)+3H2(g)change___+x______ (e) NH4Cl(s)âNH3(g)+HCl(g)change+x___NH4Cl(s)âNH3(g)+HCl(g)change+x___ (f) Ni(s)+4CO(g)âNi(CO)4(g)change+x___Ni(s)+4CO(g)âNi(CO)4(g)change+x___

chemistry


[LO 1.4](1-4-explain-why-accounting-is-important-to-business-stakeholders) Use the internet to visit the Securities and Exchange Commission (SEC) website (https://www.sec.gov/). Write a report discussing the following:    A. several of the services provided by the SEC   B. why the services are important to the investing public   C. why you think the SEC would require publicly traded companies to file financial information

business


Which concept corresponds best to functionalism?

sociology


Both diabetes mellitus and diabetes insipidus produce large urine volumes, but how would other characteristics of the urine differ between the two diseases?

biology


mathematics


According toTable 19.7, how often have recessions occurred since the end of World War II (1945)?

economics


Your colleague has excellent skills in teamwork, creative thinking, and problem solving. What competency does your colleague have?

computer_science


If \sec\; x = 4, find \sec\left( {- x} \right).

mathematics


The largest amount of water leaves the body via ________.

biology


Which type of organization would most likely require that its data centers be ISO/IEC 27001 certified?

computer_science


A 67-year-old woman presents to the urgent care center with a headache and dizziness following a 5-mile running event for charity. Which of the following findings would be most concerning?

nursing


The nurse is providing dietary instruction to a team of college athletes. Which source of energy does the nurse explain is used first during exercise?

nursing


Two particles have the same linear momentum, but particle A has four times the charge of particle B. If both particles move in a plane perpendicular to a uniform magnetic field, what is the ratio R_{A}\text{/}R_{B} of the radii of their circular orbits?

physics


Ethylene can be produced by the pyrolysis of ethane:   \text{C}_{2}\text{H}_{6}\ \longrightarrow\ \text{C}_{2}\text{H}_{4} + \text{H}_{2} How many kilograms of ethylene is produced by the pyrolysis of 1.000 \times 10 3 kg of ethane, assuming a 100.0% yield?

chemistry


Radio quiz shows and comedy shows were most popular in the ________.

political_science


Should insurance coverage be mandatory for in some U.S. areas, such as hurricane coverage in the Southeast, tornado coverage in the Midwest, earthquake coverage on the Pacific Coast? Why or why not? Should government subsidies help underwrite the cost of this coverage? Why or why not?

business


Write the molecular, total ionic, and net ionic equations for the following reactions: (a)Ca(OH)2(aq)+HC2H3O2(aq)â¶Ca(OH)2(aq)+HC2H3O2(aq)â¶ (b)H3PO4(aq)+CaCl2(aq)â¶H3PO4(aq)+CaCl2(aq)â¶

chemistry


A relatively long-lived excited state of an atom has a lifetime of 3.00 ms. What is the minimum uncertainty in its energy?

physics


LO8.2The information technology departments of all companies have significant and important roles in the internal control systems. Discuss them and their importance.

business


Many stories in the sacred text of Judaism are:    A. referred to as the Apocrypha   B. oral traditions only because Judaism has no sacred text   C. shared by Christianity and Islam   D. no longer part of the Torah

sociology


According to research, what are peopleâs general thoughts on family in the United States? How do they view nontraditional family structures? How do you think these views might change in twenty years?

sociology


Write a brief description or definition of each of the following: (a) nucleon (b) Î± particle (c) Î² particle (d) positron (e) Î³ ray (f) nuclide (g) mass number (h) atomic number

chemistry


Compare the time in the air of a basketball player who jumps 1.0 m vertically off the floor with that of a player who jumps 0.3 m vertically.

physics


A substance formed of crystals of equal numbers of cations and anions held together by ionic bonds is called a(n) ________.

biology


Indicate which substance in the given pairs has the higher entropy value. Explain your choices. (a) C 2 H 5 OH( _l_ ) or C 3 H 7 OH( _l_ ) (b) C 2 H 5 OH( _l_ ) or C 2 H 5 OH( _g_ ) (c) 2H( _g_ ) or H( _g_ )

chemistry


A conducting sheet lies in a plane perpendicular to a magnetic field \mathbf{\overset{\rightarrow}{B}} that is below the sheet. If \mathbf{\overset{\rightarrow}{B}} oscillates at a high frequency and the conductor is made of a material of low resistivity, the region above the sheet is effectively shielded from \mathbf{\overset{\rightarrow}{B}} . Explain why. Will the conductor shield this region from static magnetic fields?

physics


What are the dependent and independent variables?

mathematics


What are design patents granted for?    A. Functional designs for manufactured items, like the shape of a chair.   B. Ornamental designs for items of manufacture, like the fabric design of a chair.   C. All of the above.

business


What types of liquids typically form amorphous solids?

chemistry


Why is it so important for scientists to distinguish between homologous and analogous characteristics before building phylogenetic trees?

biology


mathematics


Why do astronomers believe there must be dark matter that is not in the form of atoms with protons and neutrons?

astronomy


According to political science scholars, which of the following provide(s) an opportunity for populism to arise within a country?

political_science


Write the ionic equation for the dissolution and theKspexpression for each of the following slightly soluble ionic compounds: (a) LaF3 (b) CaCO3 (c) Ag2SO4 (d) Pb(OH)2

chemistry


[LO 11.2](11-2-evaluate-the-payback-and-accounting-rate-of-return-in-capital- investment-decisions) What is the payback method used to determine?

business


________ is an age-related decline in bone mass, while ________ is an age-related loss of muscles mass.

psychology


What are some risks associated with surrounding yourself with others who are similar to you in background? Industry experience? Education? Age? Personality? Ability to process information?

business


Name the five âCsâ that comprise the core competencies upon which the positive youth development programs are built.

psychology


Repeat [Exercise 3.16](3-problems-exercises#eip-287) using analytical techniques, but reverse the order of the two legs of the walk and show that you get the same final result. (This problem shows that adding them in reverse order gives the same result—that is, \textbf{B + A = A + B} .) Discuss how taking another path to reach the same point might help to overcome an obstacle blocking your other path.

physics


When was the Federal Trade Commission established?

business


Where does a large percentage of e-waste wind up?    A. Incinerators   B. Recycled in peripheral nations   C. Repurposed into new electronics    D. Dumped into ocean repositories

sociology


A $14,250, 4-year loan is taken out at 9.15% interest. What are the monthly payments for the loan?

mathematics


Which of the following is not an appropriate target for antifungal drugs?    A. ergosterol   B. chitin   C. cholesterol   D. β(1→3) glucan

biology


political_science


Like Nikeâs marketing adaptation with âNike by You,â other retailers offer customers individualized products. For instance, you candesign your own jeansonline. Brainstorm five other products that may lend themselves to customized offerings that express cultural or sociodemographic differences.

business


What is a temperamental trait linked with low or high interest or nervousness in new situations and places?

psychology


Which of the following is NOT a requirement for patent eligibility?    A. Novel.   B. Revolutionary.   C. Non-obvious.   D. Useful.

business


Energy provided by a light exists in the following quantities: 150 J, 225 J, 300 J. Define one possible quantum of energy and provide an energy state that cannot exist with this quantum.

physics


Find the _x_ \- and _y_ -intercepts of the equation 2x\mspace{9mu} + \mspace{9mu} 7y = - 14.

mathematics


Which isnota merit of cooperative federalism?

political_science


How does Hume describe the is-ought problem?

philosophy


LO3.2Assume that you are the controller of a business that provides legal services to clients. Suppose that the company has had a tough year, so the revenues have been lagging behind, based on previous yearsâ standards. What would you do if your boss (the chief executive officer [CEO] of the company) asked to reclassify a transaction to report loan proceeds of $150,000 as if the cash came from service fee revenue from clients instead. Would following the CEOâs advice impact the companyâs accounting equation? How would reclassifying this one transaction change the outcome of the balance sheet, the income statement, and the statement of retained earnings? Would making this reclassification change the perception that users of the financial statements would have of the companyâs current year success and future year potential? Write a memo, detailing your willingness (or not) to embrace this suggestion, giving reasons behind your decision. Remember to exercise diplomacy, even if you must dissent from the opinion of a supervisor. Note that the challenge of the assignment is to keep your integrity intact, while also keeping your job, if possible.

business


The symmetric equation for the line of intersection between two planes x + y + z = 2 and x + 2y - 4z = 5 is given by - \frac{x - 1}{6} = \frac{y - 1}{5} = z.

mathematics


Which of these microbes causes “walking pneumonia”?    A. _Klebsiella pneumoniae_   B. _Streptococcus pneumoniae_   C. _Mycoplasma pneumoniae_   D. _Chlamydophila pneumoniae_

biology


Concentric conducting spherical shells carry charges _Q_ and – _Q_ , respectively. The inner shell has negligible thickness. What is the potential difference between the shells?

physics


Graph and list the solutions to the quadratic equationx2â36=0.

mathematics


During sexual reproduction, a homothallic mycelium contains

biology


Explain whyN22+N22+is diamagnetic, whileO24+,O24+,which has the same number of valence electrons, is paramagnetic.

chemistry


A client with heart failure has been prescribed furosemide 60 mg every morning. The tablets come in 40 mg. How many tablets should the client take each morning?

nursing


Derive the equation for the vertical acceleration of a rocket.

physics


Find the density of a fluid in which a hydrometer having a density of 0\text{.}\text{750 g}\text{/mL} floats with \text{92.0\%} of its volume submerged.

physics


Explain the difference between state socialism with central planning and market socialism.

sociology


What is the difference between foreign direct investment and portfolio investment?

economics


Compared to most Western societies, U.S. sexual attitudes are considered _______.

sociology


mathematics


The primary sensory organ for the olfactory system is called the olfactory ______?

psychology


What specific roles have dogs had in human societies across time?

anthropology


[Figure 3.14](3-4-interference-in-thin-films) shows two 7.50-cm-long glass slides illuminated by pure 589-nm wavelength light incident perpendicularly. The top slide touches the bottom slide at one end and rests on some debris at the other end, forming a wedge of air. How thick is the debris, if the dark bands are 1.00 mm apart?

physics


Professional Application A 75.0-kg person is riding in a car moving at 20.0 m/s when the car runs into a bridge abutment. (a) Calculate the average force on the person if he is stopped by a padded dashboard that compresses an average of 1.00 cm. (b) Calculate the average force on the person if he is stopped by an air bag that compresses an average of 15.0 cm.

physics


Describe the phases of the human sexual response.

biology


Dependency theorists explain global inequality and global stratification by focusing on the way that:

sociology


For the function f(x) = 6x^{2} - 3x - 9 find:   ⓐ f(3) ⓑ f(-2) ⓒ f(0)

mathematics


Which part of the clavicle articulates with the manubrium?

biology


Andromeda galaxy is the closest large galaxy and is visible to the naked eye. Estimate its brightness relative to the Sun, assuming it has luminosity \text{10}^{\text{12}}{} times that of the Sun and lies 2 Mly away.

physics


As a result of globalization and new information and communications technology, would you expect that the definitions of markets that antitrust authorities use will become broader or narrower?

economics


An interpretation ofr=0.5r=0.5is that the following part of the Y-variation is associated with which variation in X:

business


How is electric potential related to electric potential energy?

physics


The mass of a hydrogen atom(11H)(11H)is 1.007825 amu; that of a tritium atom(13H)(13H)is 3.01605 amu; and that of an Î± particle is 4.00150 amu. How much energy in kilojoules per mole of24He24Heproduced is released by the following fusion reaction:11H+13Hâ¶24He.11H+13Hâ¶24He.

chemistry


__________ is considered the most fundamental civil liberty.

political_science


business


How do humans usually contract neurocysticercosis?    A. the bite of an infected arthropod   B. exposure to contaminated cat feces   C. swimming in contaminated water   D. ingestion of undercooked pork

biology


A diver explores a shallow reef off the coast of Belize. She initially swims 90.0 m north, makes a turn to the east and continues for 200.0 m, then follows a big grouper for 80.0 m in the direction 30\text{°} north of east. In the meantime, a local current displaces her by 150.0 m south. Assuming the current is no longer present, in what direction and how far should she now swim to come back to the point where she started?

physics


LO6.7You own a clothing store and use a periodic inventory system. Research like companies in the clothing industry and answer the following questions. Which inventory system is most used in clothing stores, periodic or perpetual?Why can periodic inventory reporting be a better approach to use than perpetual inventory reporting for this type of industry?What are some of the advantages and disadvantages to the periodic inventory method?What other types of businesses may use the periodic inventory method rather than the perpetual method?

business


The nurse is providing nutritional counseling to a client planning pregnancy. The nurse should emphasize the importance of consuming what micronutrients to avoid macrocytic anemia?

nursing


mathematics


A girl pulls her 15-kg wagon along a flat sidewalk by applying a 10-N force at 37\text{°} to the horizontal. Assume that friction is negligible and that the wagon starts from rest. (a) How much work does the girl do on the wagon in the first 2.0 s. (b) How much instantaneous power does she exert at t = 2.0\ \text{s} ?

physics


Describe internalizing and externalizing behaviors that may be seen during middle childhood.

psychology


How much energy is released when an electron and a positron at rest annihilate each other? (For particle masses, see [Table 11.1](11-1-introduction-to- particle-physics) .)

physics


Common symptoms of major depressive disorder include all of the followingexcept________.

psychology


Which of the following is a good food choice for a client with Hashimotoâs thyroiditis who needs to consume iodine-rich foods?

nursing


A heater is being designed that uses a coil of 14-gauge nichrome wire to generate 300 W using a voltage of V = 110\ \text{V} . How long should the engineer make the wire?

physics


LO10.1Explain the difference between the termsFOB destinationandFOB shipping point.

business


The bodyâs temperature is controlled by the ________. This temperature is always kept between ________.

biology


What group within a corporation has the primary responsibility for protecting the interests of shareholders?

business


biology


What do economists mean when they refer to improvements in technology?

economics


Describe the difference in the localization of the sensory receptors for general and special senses in humans.

biology


Consider a sample least squares regression analysis between a dependent variable (Y) and an independent variable (X).  A sample correlation coefficient of â1 (minus one) tells us that

business


Why is a salt bridge necessary in galvanic cells like the one in [Figure 17.3](17-2-galvanic-cells) ?

chemistry


Compared to an actional potential, which is true about graded potentials?

psychology


Discuss briefly the distinction between correlation and causality.

business


When do fetal breathing movements begin?

biology


Find the surface area of the right cylinder.

mathematics


Prokaryotes stain as Gram-positive or Gram-negative because of differences in the _______.

biology


Why do you think astronomers have suggested three different spectral types (L, T, and Y) for the brown dwarfs instead of M? Why was one not enough?

astronomy


Today, most people with mental health issues are not hospitalized. Typically they are only hospitalized if they ________.

psychology


A client is being prescribed losartan at discharge from the hospital by the health care provider. The discharge instructions by the nurse should include what information about how losartan acts?

nursing


What societal and management attitudes might have caused organizational psychology to develop later than industrial psychology?

psychology


mathematics


\left\\{ \begin{array}{l} {2x - 3y < 6} \\\ {3x + 4y \geq 12} \end{array} \right.

mathematics


What type of information system is used by everyone in an organization to integrate various business processes and functions across an organization?

computer_science


How do document-oriented databases handle data, and what are their typical use cases?

computer_science


Professional Application Antiballistic missiles (ABMs) are designed to have very large accelerations so that they may intercept fast-moving incoming missiles in the short time available. What is the takeoff acceleration of a 10,000-kg ABM that expels 196 kg of gas per second at an exhaust velocity of 2\text{.}{\text{50} \times \text{10}^{3}}\ \text{m/s?}

physics


Repeat [Exercise 27.71](27-problems-exercises#fs-id1169738028271) , but take the light to be incident at a \text{45º} angle.

physics


Humans have the most urgent need for a continuous supply of ________.

biology


Which of the following islands had to be captured in order to provide a staging area for U.S. bombing raids against Japan? SakhalinIwo JimaMolokaiReunion

history


Why might it be important to consider cultural influences on personality?

psychology


Solve the linear equations using a general strategy:3xâ7=8

mathematics


Once dietary fats are digested and absorbed, why can they not be released directly into the bloodstream?

biology


Find the sum of 8q^{3} - 27 and q^{2} + 6q - 2

mathematics


Give four ways to demonstrate that Earth is spherical.

astronomy


Two thin rods, one made of steel and the other of aluminum, are joined end to end. Each rod is 2.0 m long and has cross-sectional area 9.1\ \text{mm}^{2}. If a 10,000-N tensile force is applied at each end of the combination, find: (a) stress in each rod; (b) strain in each rod; and, (c) elongation of each rod.

physics


biology


The gut microbiome (the bacterial colonies in the intestines) have become a popular area of study in biomedical research. How could varying gut microbiomes impact a personâs nutrition?

biology


Which method would you use to obtain the distance to each of the following? An asteroid crossing Earthâs orbitA star astronomers believe to be no more than 50 light-years from the SunA tight group of stars in the Milky Way Galaxy that includes a significant number of variable starsA star that is not variable but for which you can obtain a clearly defined spectrum

astronomy


mathematics


What rituals mark the passage of children into adulthood in your culture? Identify symbolic objects and actions in those rituals. What norms and values are expressed?

anthropology


Which remains unchanged when a monochromatic beam of light passes from air into water?

physics


Which germ layer gives rise to the neural plate, initiating the process of neurulation?

psychology


What are some of the conditions that make critical thinking possible?

philosophy


(a) Find x\ > > \ L limit of the potential of a finite uniformly charged rod and show that it coincides with that of a point charge formula. (b) Why would you expect this result?

physics


When researchers say that temperament is largely genetic, what claim are they making about it?

psychology


Carlos is thinking about a career in aviation. During the summer between his second and third years of high school, he completes an internship at an airport nearby. What identity status would you say he is working toward?

psychology


FSH and LH release from the anterior pituitary is stimulated by ________.

biology


Give the Lewis structure of each of the following: (a) SF4 (b) K2SO4 (c) SO2Cl2 (d) H2SO3 (e) SO3

chemistry


Given:P4(s)+5O2(g)â¶P4O10(s)ÎGÂ°=â2697.0 kJ/molP4(s)+5O2(g)â¶P4O10(s)ÎGÂ°=â2697.0 kJ/mol2H2(g)+O2(g)â¶2H2O(g)ÎGÂ°=â457.18 kJ/mol2H2(g)+O2(g)â¶2H2O(g)ÎGÂ°=â457.18 kJ/mol6H2O(g)+P4O10(s)â¶4H3PO4(l)ÎGÂ°=â428.66 kJ/mol6H2O(g)+P4O10(s)â¶4H3PO4(l)ÎGÂ°=â428.66 kJ/mol (a) Determine the standard free energy of formation,ÎGfÂ°,ÎGfÂ°,for phosphoric acid. (b) How does your calculated result compare to the value inAppendix G? Explain.

chemistry


What is the Small Business Administration?

business


Assuming ideal solution behavior, what is the osmotic pressure of an aqueous solution of 1.64 g of Ca(NO3)2in water at 25 Â°C? The volume of the solution is 275 mL. (a) Outline the steps necessary to answer the question. (b) Answer the question.

chemistry


In regard to the timing of the onset of puberty, who is more at risk for a depressed mood, negative body image, eating disorders, substance use, promiscuity, and school problems?

psychology


Which atom would be expected to have a half-filled 4ssubshell?

chemistry


Classify each substance in the table as either a metallic, ionic, molecular, or covalent network solid: SubstanceAppearanceMelting PointElectrical ConductivitySolubility in WaterXlustrous, malleable1500 Â°ChighinsolubleYsoft, yellow113 Â°CnoneinsolubleZhard, white800 Â°Conly if melted/dissolvedsoluble

chemistry


The following are the type of awards that may be issued by an arbitrator:    A. Bare Bones.   B. Reasoned.   C. Both a and b.   D. Neither a nor b.

business


mathematics


What do the conditions under which presidents decide to make public pleas suggest about the limits of presidential power?

political_science


If STM is to detect surface features with local heights of about 0.00200 nm, what percent change in tunneling-electron current must the STM electronics be able to detect? Assume that the tunneling-electron current has characteristics given in the preceding problem.

physics


A solution contains 1.0 \times 10 –2 mol of KI and 0.10 mol of KCl per liter. AgNO 3 is gradually added to this solution. Which forms first, solid AgI or solid AgCl?

chemistry


Find an example of a video of a lean pitch online. What, in your opinion, makes it successful?

business


psychology


computer_science


What are the general guidelines used to determine where your business must pay sales taxes for sales made online?

business


Which of the following methods will provide information to an ecologist about both the size and density of a population?

biology


What is non-repudiation, and how is it achieved?

computer_science


The population is an important unit in ecology as well as other biological sciences. How is a population defined, and what are the strengths and weaknesses of this definition? Are there some species that at certain times or places are not in populations?

biology


True or false? Milton Friedmanâs economic philosophy advocates increased government regulation to ensure that corporations are socially responsible.

business


The energy released by the hydrolysis of ATP is____

biology


The moral arguments for the existence of God rest upon the reality of objective values. Can a shared human interest preserve a sense of objective good (without needing a reference to a God)?

philosophy


Show that the relativistic form of Newton’s second law is (a) F = m\frac{du}{dt}\ \frac{1}{\left( {1 - {u^{2}\text{/}c^{2}}} \right)^{3\text{/}2}}; (b) Find the force needed to accelerate a mass of 1 kg by 1 \text{m/s}^{2} when it is traveling at a velocity of _c_ /2.

physics


(a) What is the minimum angular spread of a 633-nm wavelength He-Ne laser beam that is originally 1.00 mm in diameter? (b) If this laser is aimed at a mountain cliff 15.0 km away, how big will the illuminated spot be? (c) How big a spot would be illuminated on the moon, neglecting atmospheric effects? (This might be done to hit a corner reflector to measure the round-trip time and, hence, distance.)

physics


A $4,000.00 simple interest loan is taken out for 3 years at 12.5%. How much is owed when the loan comes due?

mathematics


What is the probability of rolling a prime number of dots with a fair, six-sided die numbered one through six?

mathematics


physics


Seeing patterns means that a sociologist needs to be able to:

sociology


To which theoretical perspective does the following statement most likely apply: Women continue to assume the responsibility in the household along with a paid occupation because it keeps the household running smoothly, i.e., at a state of balance?

sociology


For which of the following are plant patents granted?    A. Bioengineered plants.   B. Naturally grown plants that are distinctively different.   C. Plants that are asexually cultivated, not grown from seeds.   D. All of the above.

business


Consider our start-up company that is 100% committed to leveraging innovative technologies as a business growth facilitator. Describe how it can best take advantage of cloud-native application development to create products or services that can generate business. Give precise examples and explain how the start-up would be able to ensure the scalability of the resulting business (i.e., keep sustaining the cost of doing business while increasing its number of customers).

computer_science


Cognitive decline that is associated with dementia is an example of what type of aging?

psychology


biology


Show that if two resistors R_{1}{} and R_{2}{} are combined and one is much greater than the other ( R_{1}\text{>>}R_{2} ): (a) Their series resistance is very nearly equal to the greater resistance R_{1}{} . (b) Their parallel resistance is very nearly equal to smaller resistance R_{2}{} .

physics


A sample of 12 in-state graduate school programs at school A has a mean tuition of $64,000 with a standard deviation of $8,000. At school B, a sample of 16 in-state graduate programs has a mean of $80,000 with a standard deviation of $6,000.  On average, are the mean tuitions different?

mathematics


Why are there so many impact craters on our neighbor world, the Moon, and so few on Earth?

astronomy


mathematics


What is the correlation coefficient between the number of two-point field goals made per game (2P) and number of points scored per game (PTS)?

mathematics


Which of the following values ofrindicates the most accurate prediction of one variable from another?

business


Two sources of sound producing the same frequency are moving towards you at different speeds. Which one would sound more high-pitched?

physics


All of the following are groups of vertebrae except ________, which is a curvature.

biology


Professional Application Suppose a child drives a bumper car head on into the side rail, which exerts a force of 4000 N on the car for 0.200 s. (a) What impulse is imparted by this force? (b) Find the final velocity of the bumper car if its initial velocity was 2.80 m/s and the car plus driver have a mass of 200 kg. You may neglect friction between the car and floor.

physics


A client with no past medical history is prescribed acetaminophen, as needed, for pain related to starting a new workout regimen. They have acetaminophen 500 mg tablets at home. The nurse instructs the client not to exceed how many tablets per day?

nursing


Which of the following is a prime mover in head flexion?

biology


ALCOA does not have the monopoly power it once had. How do you suppose their barriers to entry were weakened?

economics


What mass of magnesium forms when 100,000 A is passed through a MgCl2melt for 1.00 h if the yield of magnesium is 85% of the theoretical yield?

chemistry


The gene for flower position in pea plants exists as axial or terminal alleles. Given that axial is dominant to terminal, list all of the possible F1and F2genotypes and phenotypes from a cross involving parents that are homozygous for each trait. Express genotypes with conventional genetic abbreviations.

biology


How do we calculate each of the following: marginal cost, average total cost, and average variable cost?

economics


The bile from the liver is delivered to the ________.

biology


Would you expect the natural rate of unemployment to remain the same within one country over the long run of several decades?

economics


The demonstrations at Kent State University in May 1970 were held to protest what event? the My Lai massacrethe North Vietnamese invasion of Saigonthe invasion of Cambodia by U.S. forcesthe signing of a peace agreement with North Vietnam

history


Describe the evolution of a massive star (say, 20 times the mass of the Sun) up to the point at which it becomes a supernova. How does the evolution of a massive star differ from that of the Sun? Why?

astronomy


Consider the levels of organization of the biological world, and place each of these items in order from smallest level of organization to most encompassing: skin cell, elephant, water molecule, planet Earth, tropical rainforest, hydrogen atom, wolf pack, liver.

biology


An experimental garden has 500 sunflowers plants.  The plants are being treated so they grow to unusual heights.  The average height is 9.3 feet with a standard deviation of 0.5 foot.   If sample sizes of 60 plants are taken, what is the probability the plants in a given sample will have an average height within 0.1 foot of the true mean of the population?

business


Assess the role of communication styles and conflict resolution in marital satisfaction during middle adulthood. Referencing Gottmanâs research, discuss the impact of positive and negative communication patterns on relationship stability. How can couples in middle adulthood use these strategies to maintain a healthy, fulfilling relationship?

psychology


Which statement best expresses the difference between power and authority?    A. Authority involves intimidation.   B. Authority is more subtle than power.   C. Authority is based on the perceived legitimacy of the individual in power.   D. Authority is inherited, but power is seized by military force.

sociology


How does the enterprise architecture as a strategy process pattern apply to the foundation for execution?

computer_science


A 35.0-kg dolphin accelerates opposite to the motion from 12.0 to 7.50 m/s in 2.30 s to join another dolphin in play. What average force was exerted to slow the first dolphin if it was moving horizontally? (The gravitational force is balanced by the buoyant force of the water.)

physics


Explain why responsible impact is important to cloud computing?

computer_science


Water that has emerged from a hose into the atmosphere has a gauge pressure of zero. Why? When you put your hand in front of the emerging stream you feel a force, yet the waterâs gauge pressure is zero. Explain where the force comes from in terms of energy.

physics


Is citizen engagement necessary for a democracy to function? Explain.

political_science


If a company has discriminated against minorities in the past, should it be required to give priority to minority applicants today? Why or why not?

economics


Near the martian equator, temperatures at the same spot can vary from an average of â135 Â°C at night to an average of 30 Â°C during the day. How can you explain such a wide difference in temperature compared to that on Earth?

astronomy


[LO 14.4](14-4-compare-and-contrast-owners-equity-versus-retained-earnings) What does owners’ equity mean for the owner?

business


mathematics


Would the following events usually lead to capital deepening? Why or why not?    A. A weak economy in which businesses become reluctant to make long-term investments in physical capital.   B. A rise in international trade.   C. A trend in which many more adults participate in continuing education courses through their employers and at colleges and universities.

economics


Convert the boiling temperature of gold, 2966 °C, into degrees Fahrenheit and kelvin.

chemistry


A company advertises that it delivers helium at a gauge pressure of 1.72\ \times \ 10^{7}\ \text{Pa} in a cylinder of volume 43.8 L. How many balloons can be inflated to a volume of 4.00 L with that amount of helium? Assume the pressure inside the balloons is 1.01\ \times \ 10^{5}\ \text{Pa} and the temperature in the cylinder and the balloons is 25.0\ \text{°C} .

physics


What is angular speed in terms of tangential speed and the radius?

physics


What did the Supreme Court note in the case of _Bonito Boats v. Thunder Craft Boats_ ?    A. One cannot legally misappropriate trade secrets.   B. Nobody is above the law, not even a trade secret owner.   C. The holder of a trade secret does not have protection against reverse engineering.

business


Have you seen diversity, equity, and inclusion practices gain popularity at your institution? Discuss the reasons a campus might need these practices, as well as who benefits from them.

anthropology


Which of the following statements best describes the role of gonadal steroid hormones in sex differences in stress hormone responses?

psychology


Which perspective is not a theory used to understand international relations?

political_science


Labrador retrieversâ fur color is controlled by two alleles, E and B. Any dog with the ee__ genotype develops into a yellow lab, while B_E_ dogs become black labs and bbE_ dogs become chocolate labs. This is an example of _____.

biology


Draw the ketose and aldose forms of a monosaccharide with the chemical formula C3H6O3. How is the structure of the monosaccharide changed from one form to the other in the human body?

biology


Why are banks called âfinancial intermediariesâ?

economics


What does the term Hubble time mean in cosmology, and what is the current best calculation for the Hubble time?

astronomy


Within 50 light-years of the Sun, visual binaries outnumber eclipsing binaries. Why?

astronomy


Explain the reciprocal nature of the net chemical reactions for photosynthesis and respiration.

biology


Sensory fibers, or pathways, are referred to as âafferent.â Motor fibers, or pathways, are referred to as âefferent.â What can you infer about the meaning of these two terms (afferent and efferent) in a structural or anatomical context?

biology


Using the result of the problem two problems prior, find the wavelength of light that produces fringes 7.50 mm apart on a screen 2.00 m from double slits separated by 0.120 mm (see [Figure 27.56](27-problems-exercises#import-auto- id1169737812263) ).

physics


Integrated Concepts If a polarizing filter reduces the intensity of polarized light to \text{50}\text{.}0\% of its original value, by how much are the electric and magnetic fields reduced?

physics


The aqueous humor in a person’s eye is exerting a force of 0.300 N on the 1\text{.}\text{10}\text{-cm}^{2} area of the cornea. (a) What pressure is this in mm Hg? (b) Is this value within the normal range for pressures in the eye?

physics


A gas in a cylindrical closed container is adiabatically and quasi-statically expanded from a state _A_ (3 MPa, 2 L) to a state _B_ with volume of 6 L along the path 1.8\ pV = \text{constant}\text{.} (a) Plot the path in the _pV_ plane. (b) Find the amount of work done by the gas and the change in the internal energy of the gas during the process.

physics


psychology


The ________ secretes messenger hormones that direct the function of the rest of the endocrine glands.

psychology


During which phase would penicillin, an antibiotic that inhibits cell-wall synthesis, be most effective?    A. death phase   B. lag phase   C. log phase   D. stationary phase

biology


Why are quasars generally so much more luminous (why do they put out so much more energy) than active galaxies?

astronomy


This characteristic of a bureaucracy suggests people are to be treated fairly and impartiality, without regard to a personâs social status or political party affiliation.

political_science


What are the major benefits of gravitropism for a germinating seedling?

biology


Which of the following atoms and ions is (are) isoelectronic with S2+: Si4+, Cl3+, Ar, As3+, Si, Al3+?

chemistry


Which stage of the policy progress is the most important and why?

political_science


Match the graft with its description.  ___autograft | A. donor is a different species than the recipient   ---|---   ___allograft | B. donor and recipient are the same individual   ___xenograft | C. donor is an identical twin of the recipient   ___isograft | D. donor is the same species as the recipient, but genetically different

biology


The cell found in bone that breaks it down is called an ________.

biology


Determine the oxidation number of each element in each of the following compounds: (a) HCN (b) OF 2 (c) AsCl 3

chemistry


Is it possible for a complex of a metal in the transition series to have six unpaired electrons? Explain.

chemistry


If the compacted trash used to build Mount Holly on average has a density 400{\ \text{lb/ft}}^{3}, find the amount of work required to build the mountain.

mathematics


Data science is a combination of what domains?

computer_science


Solve the formula A = \frac{1}{2}bh for h\text{:}    A. ⓐ when A=1716A=1716 and b=66b=66   B. ⓑ in general

mathematics


If an engine were constructed to perform such that there would be no losses due to friction, what would be its efficiency?

physics


Would you expect salts of the gold(I) ion, Au+, to be colored? Explain.

chemistry


A market researcher wants to see if two different stores have the same distribution of sales throughout the year. What type of test should they use?

mathematics


If the maximum speed of the mass attached to a spring, oscillating on a frictionless table, was increased, what characteristics of the rotating disk would need to be changed?

physics


Two sinusoidal waves are moving through a medium in the same direction, both having amplitudes of 3.00 cm, a wavelength of 5.20 m, and a period of 6.52 s, but one has a phase shift of an angle \phi . What is the phase shift if the resultant wave has an amplitude of 5.00 cm? [ _Hint:_ Use the trig identity \text{sin}\ u + \text{sin}\ v = 2\ \text{sin}\left( \frac{u + v}{2} \right)\text{cos}\left( \frac{u - v}{2} \right)

physics


According to the Great Compromise, how would representation in Congress be apportioned? Each state would have equal representation in both the House of Representatives and the Senate.Congress would be a unicameral legislature with each state receiving equal representation.Representation in the House of Representatives would be based on each stateâs population and every state would have two senators.Representation in both the House of Representatives and the Senate would be based on a stateâs population.

political_science


Which of these processes occurs throughout most of the alimentary canal?

biology


mathematics


You know the height from which an object is dropped. Which equation could you use to calculate the velocity as the object hits the ground?

physics


Which of the following biomes is characterized by abundant water resources?

biology


Which of the following wasnota result of Dunmoreâs Proclamation? Enslaved people joined Dunmore to fight for the British.A majority of enslaved people in the colonies won their freedom.Patriot forces increased their commitment to independence.Both slaveholding and non-slaveholding White people feared a rebellion.

history


Classify the following as acid-base reactions or oxidation-reduction reactions: (a) \text{Na}_{2}\text{S}(aq) + 2\text{HCl}(aq)\ \longrightarrow\ 2\text{NaCl}(aq) + \text{H}_{2}\text{S}(g) (b) 2\text{Na}(s) + 2\text{HCl}(aq)\ \longrightarrow\ 2\text{NaCl}(aq) + \text{H}_{2}(g) (c) \text{Mg}(s) + \text{Cl}_{2}(g)\ \longrightarrow\ \text{MgCl}_{2}(s) (d) \text{MgO}(s) + 2\text{HCl}(aq)\ \longrightarrow\ \text{MgCl}_{2}(aq) + \text{H}_{2}\text{O}(l) (e) \text{K}_{3}\text{P}(s) + 2\text{O}_{2}(g)\ \longrightarrow\ \text{K}_{3}\text{PO}_{4}(s) (f) 3\text{KOH}(aq) + \text{H}_{3}\text{PO}_{4}(aq)\ \longrightarrow\ \text{K}_{3}\text{PO}_{4}(aq) + 3\text{H}_{2}\text{O}(l)

chemistry


Can an insulating material be used to charge a conductor? If so, how? If not, why not?

physics


Describe how the duplicated bacterial chromosomes are distributed into new daughter cells without the direction of the mitotic spindle.

biology


What is the growth cone primarily responsible for during neurodevelopment?

psychology


What force does the nail puller in [Exercise 9.19](9-problems-exercises#fs- id3038577) exert on the supporting surface? The nail puller has a mass of 2.10 kg.

physics


State the domain, vertical asymptote, and end behavior of the function f(x) = \log_{5}\left( {39 - 13x} \right) + 7.

mathematics


Discuss how the business model canvas can help an entrepreneur create a framework for generating sales. Think of a business you like and describe how it generates sales.

business


Explain how the Doppler effect works for sound waves and give some familiar examples.

astronomy


What is Kubectl and what is it used for?

computer_science


Which communication technique is most effective for the nurse to use when communicating with a client with hearing impairment?

nursing


physics


Find the value of the sample size needed to be 90%  confident that the sample proportion and the population proportion are within 4% of each other.  The sample proportion is 0.60.  Note:  Round all fractions up forn.

business


During the 1976 election campaign, Jimmy Carter famously promised ________. that he would never start a warthat he would never be unfaithful to his wifethat he had never smoked marijuanathat he would never lie

history


mathematics


A cylinder of O2(g) used in breathing by patients with emphysema has a volume of 3.00 L at a pressure of 10.0 atm. If the temperature of the cylinder is 28.0 Â°C, what mass of oxygen is in the cylinder?

chemistry


How does lack of protein in the blood cause edema?

biology


Lyme disease is characterized by a(n) ________ that forms at the site of infection.

biology


If you wish to store a large amount of energy in a capacitor bank, would you connect capacitors in series or parallel? Explain.

physics


In which region of the electromagnetic spectrum would you find radiation that is invisible to the human eye and has low energy?

physics


How does a haplontic plant population maintain genetic diversity?

biology


In preparation for a scheduled surgery, a patient visits the hospital lab for a blood draw. The technician collects a blood sample and performs a test to determine its type. She places a sample of the patientâs blood in two wells. To the first well she adds anti-A antibody. To the second she adds anti-B antibody. Both samples visibly agglutinate. Has the technician made an error, or is this a normal response? If normal, what blood type does this indicate?

biology


Based on your observations, when are adolescents more likely to listen to their parents or to their peer groups when making decisions? What types of dilemmas lend themselves toward one social agent over another?

sociology


Which statement correctly describes the simple machines, like the crank in the image, that make up an Archimedes screw and the forces it applies?

physics


Which of the following developed a set of postulates for determining whether a particular disease is caused by a particular pathogen?    A. John Snow   B. Robert Koch   C. Joseph Lister   D. Louis Pasteur

biology


What do the three types of beta decay have in common that is distinctly different from alpha decay?

physics


Convert the temperature of the coldest area in a freezer, −10 °F, to degrees Celsius and kelvin.

chemistry


Why did land plants lose some of the accessory pigments present in brown and red algae?

biology


Explain how the volume of the bubbles exhausted by a scuba diver (Figure 9.16) change as they rise to the surface, assuming that they remain intact.

chemistry


Explain the difference between experiential learning and informal education and the connection between them.

psychology


Calculate the pH and the pOH of each of the following solutions at 25 Â°C for which the substances ionize completely: (a) 0.200MHCl (b) 0.0143MNaOH (c) 3.0MHNO3 (d) 0.0031MCa(OH)2

chemistry


As captain of your intramural softball team, you are responsible for setting the 10-person batting order for the team. If there are 12 people on the team, how many batting orders are possible?

mathematics


As the extent of environmental protection expands, would you expect marginal costs of environmental protection to rise or fall? Why or why not?

economics


How does the scientific meaning of âtheoryâ differ from the common vernacular meaning?

biology


Please generate a novel example of how just noticeable difference can change as a function of stimulus intensity.

psychology


Find the differential dz of h\left( {x,y} \right) = 4x^{2} + 2xy - 3y and approximate \text{Δ}z at the point \left( {1,-2} \right). Let \text{Δ}x = 0.1 and \text{Δ}y = 0.01.

mathematics


At a particular instant, a hot air balloon is 100 m in the air and descending at a constant speed of 2.0 m/s. At this exact instant, a girl throws a ball horizontally, relative to herself, with an initial speed of 20 m/s. When she lands, where will she find the ball? Ignore air resistance.

physics


What were SuperDOT and SOES, and what were they designed to do?

business


Warts are caused by    A. human papillomavirus.   B. herpes simplex virus.   C. adenoviruses.   D. parvovirus B19.

biology


What are some ways that governments can help people who lose from trade?

economics


mathematics


\frac{3}{4}x - 5 \geq -2 and   -3\left( {x + 1} \right) \geq 6

mathematics


Brenda borrowed \text{\$400} from her brother. Two years later, she repaid the \text{\$400} plus \text{\$50} interest. What was the rate of interest?

mathematics


Find surface area of the catenoidy=cosh(x)y=cosh(x)fromx=â1x=â1tox=1x=1that is created by rotating this curve around thex-axis.x-axis.

mathematics


The spacing between crystalline planes in the NaCl crystal is 0.281 nm, as determined by X-ray diffraction with X-rays of wavelength 0.170 nm. What is the energy of neutrons in the neutron beam that produces diffraction peaks at the same locations as the peaks obtained with the X-rays?

physics


A bowl of candy holds 16 peppermint, 14 butterscotch, and 10 strawberry flavored candies. Suppose a person grabs a handful of 7 candies. What is the percent chance that exactly 3 are butterscotch? (Show calculations and round to the nearest tenth of a percent.)

mathematics


How much heat, in joules and in calories, is required to heat a 28.4-g (1-oz) ice cube from −23.0 °C to −1.0 °C?

chemistry


Which of the following terms refers to a bacterial cell having a single tuft of flagella at one end?    A. monotrichous   B. amphitrichous   C. peritrichous   D. lophotrichous

biology


Geometric optics describes the interaction of light with macroscopic objects. Why, then, is it correct to use geometric optics to analyse a microscopeâs image?

physics


Explain why the string, pins, and pencil method works for drawing an ellipse.

physics


The nurse is analyzing a popular diet plan with a client. Which of the following information would cause the nurse to question the validity of the presented diet?

nursing


If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of?

biology


The nurse is educating a client on how to eat heart healthy. The client tells the nurse that their typical meal consists of traditional Mexican foods. Which meal chosen would indicate the client understands the instruction?

nursing


Define the Correlation Coefficient and give a unique example of its use.

business


What is the binding energy in eV of electrons in magnesium, if the longest- wavelength photon that can eject electrons is 337 nm?

physics


What property of a reaction can we use to predict the effect of a change in temperature on the value of an equilibrium constant?

chemistry


Unwarranted wiretapping in the United States was conducted by ________. the FBIthe CIAtheNew York Timesthe NSA

history


An installment loan with monthly payments has an outstanding balance of $3,560. If the annual interest rate is 9%, how much interest will be paid that month?

mathematics


Humans have which type of survivorship curve?

biology


mathematics


Which of the following protective mechanisms is NOT triggered when solitary chemosensory cells are stimulated by acyl-homoserine lactones?

psychology


Why does William Baxter adopt an anthropocentric environmental ethic?

philosophy


Passes through the points \left( {- 4,2} \right) and \left( {5,-3} \right).

mathematics


What is the twoâs complement of the binary number 11100101?

computer_science


Explain why ice, which is a crystalline solid, has a melting temperature of 0 °C, whereas butter, which is an amorphous solid, softens over a range of temperatures.

chemistry


Summarize the evidence indicating that over several hundreds of years or more there have been variations in the level of the solar activity.

astronomy


An agreement between an individual employee and a company that states that innovations belong to the company, even if an individual makes substantial contributions. nondisclosure agreementwork-for-hire agreementnoncompete clausepatent

business


It is estimated that weapons tests in the atmosphere have deposited approximately 9 MCi of {}^{\text{90}}\text{Sr} on the surface of the earth. Find the mass of this amount of {}^{\text{90}}\text{Sr} .

physics


The GDP for the United States is $18,036 billion and its current account balance is â$484 billion. What percent of GDP is the current account balance?

economics


Which of the following findings was not a result of the Kinsey study? Sexual desire and sexual ability can be separate functions.Females enjoy sex as much as males.Sexual acts between members of the same gender are fairly common.Masturbation has no adverse consequences.

psychology


LO11.5How does the size of the initial investment affect the internal rate of return on the net present value models?

business


A 5.08-cm-long rectangular glass chamber is inserted into one arm of a Michelson interferometer using a 633-nm light source. This chamber is initially filled with air (n = 1.000293) at standard atmospheric pressure but the air is gradually pumped out using a vacuum pump until a near perfect vacuum is achieved. How many fringes are observed moving by during the transition?

physics


Why is it important to consider ethical issues when performing penetration tests?

computer_science


How do neural networks recognize objects in images?

computer_science


What are some ways you can determine the true root cause of a problem and not just its symptoms?

business


(a) Suppose a cold front blows into your locale and drops the temperature by 40.0 Fahrenheit degrees. How many degrees Celsius does the temperature decrease when it decreases by 40.0\ \text{°}\text{F} ? (b) Show that any change in temperature in Fahrenheit degrees is nine-fifths the change in Celsius degrees

physics


mathematics


Which of the following properties isnotcommon to all three muscle tissues?

biology


A state both exercises and bestows power when it recognizes another stateâs ________.

political_science


Passes through the point \left( {- 3,4} \right) and is parallel to the graph y = \frac{2}{3}x + 5.

mathematics


political_science


Assuming ideal solution behavior, what is the boiling point of a solution of NaCl in water if the solution freezes at â0.93 Â°C?

chemistry


[LO 4.2](4-2-discuss-the-adjustment-process-and-illustrate-common-types-of- adjusting-entries) Rent paid in advance is an example of which of the following?    A. accrued expense   B. accrued revenue   C. deferred expense (prepaid expense)   D. deferred revenue (unearned revenue)

business


What is an example of a cloud service model defined by NIST?

computer_science


An older adult reports a problem with constipation. Which dietary recommendation is appropriate for this client?

nursing


The transfer of genes by a mechanism not involving reproduction is called:

biology


What are the three basic components of a modern astronomical instrument? Describe each in one to two sentences.

astronomy


What does the shaded area represent?P(___<x< ___) Figure5.31

business


Consider a battery with the overall reaction: \text{Cu}(s) + 2\text{Ag}^{\text{+}}(aq)\ \longrightarrow\ \text{2Ag}(s) + \text{Cu}^{2+}(aq). (a) What is the reaction at the anode and cathode? (b) A battery is “dead” when its cell potential is zero. What is the value of _Q_ when this battery is dead? (c) If a particular dead battery was found to have [Cu 2+ ] = 0.11 _M_ , what was the concentration of silver ion?

chemistry


Construct a frequency polygon from the frequency distribution for the 50 highest ranked countries for depth of hunger. Depth of HungerFrequency230â25921260â28913290â3195320â3497350â3791380â4091410â4391Table2.47

mathematics


LO7.4Can a sales journal be used to record sales on account and a cash sale? Why or why not?

business


LO10.5What insights can be gained from inventory ratio analysis, such as inventory turnover ratio and number of daysâ sales in inventory ratio?

business


Studying sociology helps people analyze data because they learn:

sociology


Briefly describe the three concepts that Peck added to Eriksonâs stage of integrity versus despair.

psychology


Carbon dioxide decomposes into CO and O2at elevated temperatures. What is the equilibrium partial pressure of oxygen in a sample at 1000 Â°C for which the initial pressure of CO2was 1.15 atm?

chemistry


DICEE is a model for ________ that focuses on going beyond problem solving to get at the underlying qualities of what makes certain new products âstickyâ in ways that make people true fans. creativity in practiceinnovative productsinventionsbuilding creative teams

business


What are some of the realities of business ownership?

business


mathematics


The winner of the 1840 election was ________. a Democrata Democratic-Republicanan Anti-Federalista Whig

history


Gastric juice, the digestive fluid produced in the stomach, contains hydrochloric acid, HCl. Milk of Magnesia, a suspension of solid Mg(OH)2in an aqueous medium, is sometimes used to neutralize excess stomach acid. Write a complete balanced equation for the neutralization reaction, and identify the conjugate acid-base pairs.

chemistry


When a magnet is thrust into a coil as inFigure 23.4(a), what is the direction of the force exerted by the coil on the magnet? Draw a diagram showing the direction of the current induced in the coil and the magnetic field it produces, to justify your response. How does the magnitude of the force depend on the resistance of the galvanometer?

physics


If a polarizing filter reduces the intensity of polarized light to 50.0\text{\%} of its original value, by how much are the electric and magnetic fields reduced?

physics


Why donât we feel the momentum of sunlight when we are on the beach?

physics


If a savings account pays interest on a quarterly basis and you are performing future value calculations on deposited amounts, how can you calculate the rate?

business


A deficit is ________.    A. the overall amount owed by government for past borrowing   B. the annual budget shortfall between revenues and expenditures   C. the cancellation of an entitlement program   D. all the above

political_science


How can you express the proportion of thermal energy lost by a heat engine?

physics


Calculate the electric field of an infinite line charge, throughout space.

physics


Describe three behaviors or activities that promote a healthy pregnancy and explain why they matter.

psychology


Why is life unlikely to be found on the surface of Mars today?

astronomy


Prokaryotic cells lack a nucleus. Therefore, the genes in prokaryotic cells are:

biology


A ball travels from north to south at 60 km/h. After being hit by a bat, it travels from west to east at 60 km/h. Is there a change in velocity?

physics


The RNA components of ribosomes are synthesized in the ________.

biology


What is the total amount of interest from a $5,000 loan after three years with a simple interest rate of 6%?

economics


biology


President Theodore Roosevelt’s concept of the bully pulpit was the office’s ________.    A. authority to use force, especially military force   B. constitutional power to veto legislation   C. premier position to pressure through public appeal   D. ability to use technology to enhance the voice of the president

political_science


Consider our start-up company and our goal of growth. Our new clients say that they will only use Apple devices. How can we accelerate development of their front-end web application?

computer_science


What are the steps in the sales process?

business


How could you travel far into the future without aging significantly? Could this method also allow you to travel into the past?

physics


mathematics


If the ________ nerve is severed, an animal would not receive information about stomach stretch from nerve endings surrounding the stomach.

psychology


Briefly describe the main type of scenario in which the two-stage DDM approach might be used to value a firm and its stock.

business


A client is being discharged on a glucocorticosteroid drug for a flare-up of rheumatoid arthritis. Which instruction should the nurse give to the client?

nursing


[LO 13.3](13-3-prepare-journal-entries-to-reflect-the-life-cycle-of-bonds) Does interest expense increase or decrease when a bond premium is amortized?

business


[LO 6.6](6-6-describe-and-prepare-multi-step-and-simple-income-statements-for- merchandising-companies) The following is select account information for Sunrise Motors. Sales: $256,400; Sales Returns and Allowances: $34,890; COGS: $120,470; Sales Discounts: $44,̸. Given this information, what is the Gross Profit Margin Ratio for Sunrise Motors? (Round to the nearest whole percentage.)

business


Identify the correct terms used in this text for setting SMART goals. specific, measurable, attainable, relevant, time-boundspecific, marketable, attainable, relevant, time-boundspecific, measurable, achievable, relevant, timelyspecific, measurable, attractive, relevant, time-bound

business


Benzene is one of the compounds used as octane enhancers in unleaded gasoline. It is manufactured by the catalytic conversion of acetylene to benzene:3C2H2(g)âC6H6(g).3C2H2(g)âC6H6(g).Which value ofKcwould make this reaction most useful commercially?Kcâ 0.01,Kcâ 1, orKcâ 10. Explain your answer.

chemistry


What impact does an increasing magnetic field have on the critical temperature of a semiconductor?

physics


Explain the purpose and importance of business plan.

business


With reference to waves, what is a trough?

physics