Nitrogen in the atmosphere exists as very stable diatomic molecules. Why does phosphorus form less stable P4molecules instead of P2molecules?

chemistry


Anemia affects which population the most often?

nursing


mathematics


The electric field in a particular thundercloud is 2.0\ \times \ 10^{5}\ \text{N/C}. What is the acceleration of an electron in this field?

physics


In complete sentences, explain why the confidence interval inExercise 8.74is larger than inExercise 8.75.

business


Rewrite - \log_{y}\left( \frac{1}{12} \right) as a single logarithm.

mathematics


What are some potential benefits of a crowdfunding campaign aside from the funding itself? What are some potential drawbacks?

business


The part of the neuron that is specialized for receiving information is:

psychology


Flame cells are primitive excretory organs found in ________.

biology


How does competition, whether domestic or foreign, harm businesses?

economics


One might think that the internal energy of diatomic gases is given by E_{\text{int}} = 5RT\text{/}B. Do diatomic gases near room temperature have more or less internal energy than that? _Hint:_ Their internal energy includes the total energy added in raising the temperature from the boiling point (very low) to room temperature.

physics


How does the interference of water waves differ from the interference of electrons? How are they analogous?

physics


Assessing the health of both the birth mother and newborn is crucial immediately after birth. Imagine you are a pediatric nurse working in a hospital setting. How would you explain the importance of tests like the Apgar test and the Neonatal Behavioral Assessment Scale (NBAS) to concerned parents? Discuss how these tests evaluate the newbornâs health, what information they provide, and how the results guide medical care. What role do these tests play in ensuring a newbornâs well-being, and how might you address common concerns parents have regarding these assessments?

psychology


Draw a graph to represent the floor plan for the elementary school in which each vertex is a room and an edge between two vertices indicates that there is a path between the two rooms that does not pass the door to another room.

mathematics


The measures of two angles of a triangle are 22 and 85 degrees. Find the measure of the third angle.

mathematics


Which of the following is true about pain and touch sensation?

psychology


Explain one positive and one negative aspect of the lifetime term of office for judges and justices in the federal court system. Why do you believe the constitutionâs framers chose lifetime terms?

political_science


Which of these people likely has the highest melatonin levels in their blood?

psychology


Stopping a filibuster requires that ________.

political_science


Identify two reasons why young adults in rural areas might decide not to attend college.

psychology


Where in the solar system (and beyond) have scientists found evidence of organic molecules?

astronomy


mathematics


How did Colombia react to the United Statesâ proposal to construct a canal through Central America? They preferred to build such a canal themselves.They preferred that no canal be built at all.They agreed to sell land to the United States to build the canal, but in a less advantageous location than the Panamanians.They felt that Rooseveltâs deal offered too little money.

history


What is _not_ a negative outcome of shoreline dredging?    A. Damaged coral reefs   B. Death of marine life   C. Ruined sea grass beds   D. Reduction of human population

sociology


Following a motorcycle accident, the victim loses the ability to move the right leg but has normal control over the left one, suggesting a hemisection somewhere in the thoracic region of the spinal cord. What sensory deficits would be expected in terms of touch versus pain? Explain your answer.

biology


A cyclist traveling southeast along a road at 15 km/h feels a wind blowing from the southwest at 25 km/h. To a stationary observer, what are the speed and direction of the wind?

physics


Explain why administration of a thrombolytic agent is a first intervention for someone who has suffered a thrombotic stroke.

biology


Roofs are sometimes pushed off vertically during a tropical cyclone, and buildings sometimes explode outward when hit by a tornado. Use Bernoulliâs principle to explain these phenomena.

physics


Which of the following leads to the redness of inflammation?

biology


In a ________ political culture, the government is seen as a mechanism for maintaining the existing social order or status quo. moralisticindividualistictraditionalisticnativistic

political_science


An ideal _diesel_ cycle is shown below. This cycle consists of five strokes. In this case, only air is drawn into the chamber during the intake stroke _OA_ . The air is then compressed adiabatically from state _A_ to state _B_ , raising its temperature high enough so that when fuel is added during the power stroke _BC_ , it ignites. After ignition ends at _C_ , there is a further adiabatic power stroke _CD_ . Finally, there is an exhaust at constant volume as the pressure drops from p_{D} to p_{A} , followed by a further exhaust when the piston compresses the chamber volume to zero. (a) Use W = Q_{1} - Q_{2} , Q_{1} = nC_{p}(T_{C} - T_{B}) , and Q_{2} = nC_{v}(T_{D} - T_{A}) to show that e = \frac{W}{Q_{1}} = 1 - \frac{T_{D} - T_{A}}{\gamma(T_{C} - T_{B})} . (b) Use the fact that A\rightarrow B and C\rightarrow D are adiabatic to show that e = 1 - \frac{1}{\gamma}\ \frac{\left( \frac{V_{C}}{V_{D}} \right)^{\gamma} - \left( \frac{V_{B}}{V_{A}} \right)^{\gamma}}{\left( \frac{V_{C}}{V_{D}} \right) - \left( \frac{V_{B}}{V_{A}} \right)} . (c) Since there is no preignition (remember, the chamber does not contain any fuel during the compression), the compression ratio can be larger than that for a gasoline engine. Typically, {V_{A}\text{/}{V_{B} = 15}}\ \text{and}\ {V_{D}\text{/}{V_{C} = 5}} . For these values and \gamma = 1.4, show that \varepsilon = 0.56 , or an efficiency of 56\text{\%} . Diesel engines actually operate at an efficiency of about 30\text{\%}\ \text{to}\ 35\text{\%} compared with 25\text{\%}\ \text{to}\ 30\text{\%} for gasoline engines.

physics


How do discovery and invention differ and how are these involved in computer science?

computer_science


When Henrietta Leavitt discovered the period-luminosity relationship, she used cepheid stars that were all located in the Small Magellanic Cloud. Why did she need to use stars in another galaxy and not cepheids located in the Milky Way?

astronomy


Give an example of a physical entity that is not quantized, in that it is continuous and may have a continuous range of values.

physics


UseTable 2.62to find the value that is three standard deviations: above the meanbelow the mean

business


Which of the following sequences correctly lists in order the steps involved in the incorporation of a proteinaceous molecule within a cell?

biology


Two objects collide with each other and come to a rest. How can you use the equation of conservation of momentum to describe this situation?

physics


Studies using Marciaâs identity status have consistently found that identity commitment was most strongly encouraged by which life event?

psychology


mathematics


biology


[LO 13.1](13-1-explain-the-pricing-of-long-term-liabilities) What do you have to do to the interest rate and years of maturity if a bond pricing problem tells you that interest is compounded quarterly?

business


What is the microscopic explanation for the macroscopic behavior illustrated inFigure 11.14?

chemistry


Strike-anywhere matches contain a layer of KClO 3 and a layer of P 4 S 3 . The heat produced by the friction of striking the match causes these two compounds to react vigorously, which sets fire to the wooden stem of the match. KClO 3 contains the \text{ClO}_{3}{}^{\text{−}} ion. P 4 S 3 is an unusual molecule with the skeletal structure.  (a) Write Lewis structures for P 4 S 3 and the \text{ClO}_{3}{}^{–} ion. (b) Describe the geometry about the P atoms, the S atom, and the Cl atom in these species. (c) Assign a hybridization to the P atoms, the S atom, and the Cl atom in these species. (d) Determine the oxidation states and formal charge of the atoms in P 4 S 3 and the \text{ClO}_{3}{}^{–} ion.

chemistry


Phosphoric acid, one of the acids used in some cola drinks, is produced by the reaction of phosphorus(V) oxide, an acidic oxide, with water. Phosphorus(V) oxide is prepared by the combustion of phosphorus. (a) Write the empirical formula of phosphorus(V) oxide. (b) What is the molecular formula of phosphorus(V) oxide if the molar mass is about 280. (c) Write balanced equations for the production of phosphorus(V) oxide and phosphoric acid. (d) Determine the mass of phosphorus required to make 1.00ÃÃ104kg of phosphoric acid, assuming a yield of 98.85%.

chemistry


The species ________, which belongs to Epsilonproteobacteria, causes peptic ulcers of the stomach and duodenum.

biology


What voltage is involved in a 1.44-kW short circuit through a 0.100\text{-}\text{Ω} resistance?

physics


Premium rates for insurance coverage are based on statistical calculations of the historical rate of incidence of certain kinds of accidents, disasters, and theft, among other calamities against which we insure ourselves. Is this the most equitable way to assign these rates? Why or why not?

business


A friend of yours who did not do well in her astronomy class tells you that she believes all stars are old and none could possibly be born today. What arguments would you use to persuade her that stars are being born somewhere in the Galaxy during your lifetime?

astronomy


The terminal velocity of a person falling in air depends upon the weight and the area of the person facing the fluid. Find the terminal velocity (in meters per second and kilometers per hour) of an 80.0-kg skydiver falling in a headfirst position with a cross-section area facing the fluid of 0\text{.}\text{140}\ \text{m}^{2} .

physics


What is the Standard Model? Express your answer in terms of the four fundamental forces and exchange particles.

physics


Compare and contrast Skinnerâs perspective on personality development to Freudâs.

psychology


Which of the following represents the correct sequence of zones in the epiphyseal plate?

biology


What can government do to encourage the development of new technology?

economics


A normal mRNA that reads 5â â UGCCAUGGUAAUAACACAUGAGGCCUGAACâ 3â has an insertion mutation that changes the sequence to 5â -UGCCAUGGUUAAUAACACAUGAGGCCUGAACâ 3â. Translate the original mRNA and the mutated mRNA, and explain how insertion mutations can have dramatic effects on proteins. (Hint: Be sure to find the initiation site.)

biology


[LO 16.3](16-3-prepare-the-statement-of-cash-flows-using-the-indirect-method) Which of the following would trigger a subtraction in the indirect operating section?    A. gain on sale of investments   B. depreciation expense   C. decrease in accounts receivable   D. decrease in bonds payable

business


mathematics


Which is larger, the mean or the median?

mathematics


Give an example of energy carried by an electromagnetic wave.

physics


A population has a mean of 25 and a standard deviation of five. The sample mean is 24, and the sample size is 108. What distribution should you use to perform a hypothesis test?

mathematics


Convert the Mayan numeral to a Hindu-Arabic numeral.

mathematics


The antibody screening test that is done along with pretransfusion blood typing is used to ensure that the recipient    A. does not have a previously undetected bacterial or viral infection.   B. is not immunocompromised.   C. actually does have the blood type stated in the online chart.   D. is not making antibodies against antigens outside the ABO or Rh systems.

biology


Give the hybridization and oxidation state for sulfur in SO2, in SO3, and in H2SO4.

chemistry


The nurse is educating a client who is taking pantoprazole. What information should be included in the education?

nursing


Describe the attempts of the various European colonists to convert native peoples to their belief systems. How did these attempts compare to one another? What were the results of each effort?

history


The Dow Jones Sustainability Indices provides information for ________.    A. investors who seek quick profit   B. investors who seek long-term returns   C. investors who value CSR in companies   D. marketing promotions of each of its members

business


A study of the rate of the reaction represented as2Aâ¶B2Aâ¶Bgave the following data: Time (s)0.05.010.015.020.025.035.0[A] (M)1.000.7750.6250.4650.3600.2850.230 (a) Determine the average rate of disappearance ofAbetween 0.0 s and 10.0 s, and between 10.0 s and 20.0 s. (b) Estimate the instantaneous rate of disappearance ofAat 15.0 s from a graph of time versus [A]. What are the units of this rate? (c) Use the rates found in parts (a) and (b) to determine the average rate of formation ofBbetween 0.00 s and 10.0 s, and the instantaneous rate of formation ofBat 15.0 s.

chemistry


What is one major vulnerability commonly found in Internet of Things (IoT) devices, and how has this vulnerability been exploited in a real-world example?

computer_science


Sigmund Freud developed his theory of human personality by conducting in-depth interviews over an extended period of time with a few clients. This type of research approach is known as a(n): ________.

psychology


In the middle of the twentieth century, major U.S. cities had multiple competing city bus companies. Today, there is usually only one and it runs as a subsidized, regulated monopoly. What do you suppose caused the change?

economics


By calculating ÎSunivat each temperature, determine if the melting of 1 mole of NaCl(s) is spontaneous at 500 Â°C and at 700 Â°C.SNaCl(s)Â°=72.11JmolÂ·KSNaCl(l)Â°=95.06JmolÂ·KÎHfusionÂ°=27.95 kJ/molSNaCl(s)Â°=72.11JmolÂ·KSNaCl(l)Â°=95.06JmolÂ·KÎHfusionÂ°=27.95 kJ/mol What assumptions are made about the thermodynamic information (entropy and enthalpy values) used to solve this problem?

chemistry


Find the 90thpercentile for the mean weight for the 100 weights.

mathematics


What is a drawback to not analyzing big data in a timely manner?

computer_science


LO13.2Does issuing a bond at a discount increase or decrease interest expense over the life of the bond?

business


What are some key principles of the General Data Protection Regulation (GDPR) that organizations should comply with?

computer_science


What is the difference between a budget deficit and the national debt?

economics


Why would combining a camera with a cell phone in a smartphone pass the test for non-obviousness, whereas putting wheels from a chair onto an office cart would not?    A. The technology in a smartphone is much more complicated.   B. Putting wheels from a chair onto a cart is less difficult.   C. Combining a camera and a cell phone produced an unexpected result.

business


When visiting some countries, you may see a person balancing a load on the head. Explain why the center of mass of the load needs to be directly above the personâs neck vertebrae.

physics


The ___________ separates the upper and lower respiratory tract.    A. bronchi   B. larynx   C. epiglottis   D. palatine tonsil

biology


mathematics


Roxanne Quimby of Burtâs Bees is an example of an entrepreneur primarily for which of the following reasons? She saw available resources and recognized the resources could be used to create a business.She acted on her passions.She solved a significant societal problem.She had the time and energy to dedicate to starting business.

business


Answer these three questions about early-stage corporate finance:    A. Why do very small companies tend to raise money from private investors instead of through an IPO?   B. Why do small, young companies often prefer an IPO to borrowing from a bank or issuing bonds?   C. Who has better information about whether a small firm is likely to earn profits, a venture capitalist or a potential bondholder, and why?

economics


The ________ forces selective uptake of minerals in the root.

biology


What is the ratio of the average translational kinetic energy of a nitrogen molecule at a temperature of 300 K to the gravitational potential energy of a nitrogen-molecule−Earth system at the ceiling of a 3-m-tall room with respect to the same system with the molecule at the floor?

physics


What was President Zachary Taylorâs top priority as president? preserving the Unionensuring the recapture of escaped enslaved peopleexpanding slaveryenlarging the state of Texas

history


Amalgamation is represented by the _____________ metaphor.

sociology


We use antisera to distinguish between various ________ within a species of bacteria.    A. isotypes   B. serovars   C. subspecies   D. lines

biology


Calculate the molar mass of each of the following: (a) S 8 (b) C 5 H 12 (c) Sc 2 (SO 4 ) 3 (d) CH 3 COCH 3 (acetone) (e) C 6 H 12 O 6 (glucose)

chemistry


Explain how biodiversity loss can impact crop diversity.

biology


Identify and describe two factors that have led to a decline in teen pregnancy rates.

psychology


A pharmaceutical company is interested in the relationship between age and presentation of symptoms for a common viral infection. A random sample is taken of 500 people with the infection across different age groups.

mathematics


Write the set of all zebras that do not have stripes in symbolic form.

mathematics


If Earth was to be hit by an extraterrestrial object, where in the solar system could it come from and how would we know its source region?

astronomy


(a) What is the direction of the total Coulomb force onqqinFigure 18.42ifqqis negative,qa=qcqa=qcand both are negative, andqb=qdqb=qdand both are positive? (b) What is the direction of the electric field at the center of the square in this situation?

physics


psychology


Which person or group was most responsible for the passage of the Fourteenth Amendment?    A. President Johnson   B. northern voters   C. southern voters   D. Radical Republicans in Congress

history


physics


Suppose the Milky Way Galaxy were truly isolated and that no other galaxies existed within 100 million light-years. Suppose that galaxies were observed in larger numbers at distances greater than 100 million light-years. Why would it be more difficult to determine accurate distances to those galaxies than if there were also galaxies relatively close by?

astronomy


Industries like to be in control of their own destiny and as a result prefer self-regulation to laws imposed by governments. Self-regulation is often ________. based on external codes of conductenforced by the courtsin conflict with common lawless costly for firms than government regulation

business


Unreasonable Results A frazzled theoretical physicist reckons that all conservation laws are obeyed in the decay of a proton into a neutron, positron, and neutrino (as in \beta^{+} decay of a nucleus) and sends a paper to a journal to announce the reaction as a possible end of the universe due to the spontaneous decay of protons. (a) What energy is released in this decay? (b) What is unreasonable about this result? (c) What assumption is responsible?

physics


Among other bones, the axial skeleton includes the ________.

biology


mathematics


An airplane of mass 4.0\ \times \ 10^{4}\ \text{kg} flies horizontally at an altitude of 10 km with a constant speed of 250 m/s relative to Earth. (a) What is the magnitude of the airplane’s angular momentum relative to a ground observer directly below the plane? (b) Does the angular momentum change as the airplane flies along a constant altitude?

physics


LO11.5Fenton, Inc., has established a new strategic plan that calls for new capital investment. The company has a 9.8% required rate of return and an 8.3% cost of capital. Fenton currently has a return of 10% on its other investments. The proposed new investments have equal annual cash inflows expected. Management used a screening procedure of calculating a payback period for potential investments and annual cash flows, and the IRR for the 7 possible investments are shown. Each investment has a 6-year expected useful life and no salvage value. Identify which project(s) is/are unacceptable and briefly state the conceptual justification as to why each of your choices is unacceptable.Assume Fenton has $330,000 available to spend. Which remaining projects should Fenton invest in and in what order?If Fenton was not limited to a spending amount, should they invest in all of the projects given the company is evaluated using return on investment?

business


[LO 12.3](12-3-define-and-apply-accounting-treatment-for-contingent- liabilities) Blake Department Store sells television sets with one-year warranties that cover repair and replacement of television parts. In the month of June, Blake sells forty television sets with a per unit cost of $ȴ. If Blake estimates warranty fulfillment at 10% of sales, what would be the warranty liability reported in June?    A. $1,000   B. $2,000   C. $500   D. $20,000

business


To what color must quarks combine for a particle to be constructed?

physics


What are the differences in the three major types of entrepreneurs?

business


Analyze the role of caregivers in fostering self-recognition and self-awareness in infants. How do interactions, such as the mirror test and verbal prompts, contribute to the development of an infantâs sense of self? Discuss the significance of these milestones and provide examples of how early experiences with caregivers can influence the trajectory of self-development.

psychology


A copper wire of length _L_ is fashioned into a circular coil with _N_ turns. When the magnetic field through the coil changes with time, for what value of _N_ is the induced emf a maximum?

physics


An electron can interact with a nucleus through the beta-decay process: {}_{Z}^{A}\text{X}\ \text{+}\ e^{-}\rightarrow\ Y + v_{e} . (a) Write the complete reaction equation for electron capture by {}^{7}\text{Be} . (b) Calculate the energy released.

physics


Convert \left( {- 9, - 4} \right) to polar coordinates.

mathematics


business


Some economists warn that the persistent trade deficits and a negative current account balance that the United States has run will be a problem in the long run. Do you agree or not? Explain your answer.

economics


What are the main functions of the spinal cord?

biology


The majority of the water found on Earth is:

biology


Give an explanation of how food energy (calories) can be viewed as molecular potential energy (consistent with the atomic and molecular definition of internal energy).

physics


How did Texas settlersâ view of Mexico and its people contribute to the history of Texas in the 1830s?

history


What is the primary difference between a heuristic and a pattern?

computer_science


Which international standard provides a framework for an information security management system (ISMS)?

computer_science


\mathbf{\text{r}}(t) = 2\mathbf{\text{i}} + \text{t}\ \mathbf{\text{j}} + 3t^{2}\mathbf{\text{k}} for 0 \leq t \leq 1

mathematics


A patient becomes violent on hospital premises after being turned down for the clinical trial of a new drug therapy. This scenario fits which of the following workplace violence categories? traditional criminal intentviolence by one worker against anotherviolence stemming from a personal relationshipviolence by a customer

business


The half-life of strontium-91, {}_{38}^{91}\text{S}\text{r} is 9.70 h. Find (a) its decay constant and (b) for an initial 1.00-g sample, the activity after 15 hours.

physics


The graph of f(x) = 6.5^{x} is reflected about the _y_ -axis and stretched vertically by a factor of G. What is the equation of the new function, g(x)? State its _y_ -intercept, domain, and range.

mathematics


chemistry


Do all planetary systems look the same as our own?

astronomy


Identify the different attachment styles that might be seen in adolescent relationships.

psychology


mathematics


Which of the following is a genetic disease that results in lack of production of antibodies?    A. agammaglobulinemia   B. myasthenia gravis   C. HIV/AIDS   D. chronic granulomatous disease

biology


A small object is placed at the top of an incline that is essentially frictionless. The object slides down the incline onto a rough horizontal surface, where it stops in 5.0 s after traveling 60 m. (a) What is the speed of the object at the bottom of the incline and its acceleration along the horizontal surface? (b) What is the height of the incline?

physics


What is the best way to use GOTO in the structured paradigm?

computer_science


Which of the following is not directly connected to the nasopharynx?    A. middle ear   B. oropharynx   C. lacrimal glands   D. nasal cavity

biology


A coil with a self-inductance of 2.0 H carries a current that varies with time according to I(t) = (2.0\ \text{A})\text{sin}\ 120\pi t. Find an expression for the emf induced in the coil.

physics


A 0.0502-kg pair of fuzzy dice is attached to the rearview mirror of a car by a short string. The car accelerates at constant rate, and the dice hang at an angle of 3.20\text{°} from the vertical because of the car’s acceleration. What is the magnitude of the acceleration of the car?

physics


Which medication does the nurse anticipate will be ordered for a client admitted with a diagnosis of gastritis?

nursing


Which disorder results from a combination of multiple genetic and environmental factors?

psychology


biology


When thirteen-year-old Taylor points out someoneâs body size, their parent frequently responds, âEveryone is unique and beautiful in their own way!â What is Taylorâs parent acknowledging?

psychology


A child (32 kg) jumps up and down on a trampoline. The trampoline exerts a spring restoring force on the child with a constant of 5000 N/m. At the highest point of the bounce, the child is 1.0 m above the level surface of the trampoline. What is the compression distance of the trampoline? Neglect the bending of the legs or any transfer of energy of the child into the trampoline while jumping.

physics


Thallium was used as a poison in the Agatha Christie mystery story “The Pale Horse.” Thallium has two possible cationic forms, +1 and +C. The +1 compounds are the more stable. Write the electron structure of the +1 cation of thallium.

chemistry


The Russian military buildup on the Ukraine border in early 2022 and calculated responses from the United States and its NATO allies can be viewed as a ________.

political_science


If the cost of a car is $35,500, and the residual value of the car after 3 years is $27,800, what is the monthly depreciation for the car?

mathematics


Which atom has the electron configuration 1s22s22p63s23p64s23d104p65s24d2?

chemistry


How is childrenâs play influenced by gender roles? Think back to your childhood. How âgenderedâ were the toys and activities available to you? Do you remember gender expectations being conveyed through the approval or disapproval of your playtime choices?

sociology


Calculate the molality of each of the following solutions: (a) 0.710 kg of sodium carbonate (washing soda), Na 2 CO 3 , in 10.0 kg of water—a saturated solution at 0°C(b) 125 g of NH 4 NO 3 in 275 g of water—a mixture used to make an instant ice pack (c) 25 g of Cl 2 in 125 g of dichloromethane, CH 2 Cl 2 (d) 0.372 g of tetrahydropyridine, C 5 H 9 N, in 125 g of chloroform, CHCl 3

chemistry


If a quantum particle is in a stationary state, does it mean that it does not move?

physics


What positive changes in cognition might be expected in middle adulthood?

psychology


psychology


Under the Articles of Confederation, what power did the national Confederation Congress have? the power to taxthe power to enforce foreign treatiesthe power to enforce commercial trade agreementsthe power to create land ordinances

history


Among other things, an ideal fuel for the control thrusters of a space vehicle should decompose in a spontaneous exothermic reaction when exposed to the appropriate catalyst. Evaluate the following substances under standard state conditions as suitable candidates for fuels. (a) Ammonia:2NH3(g)â¶N2(g)+3H2(g)2NH3(g)â¶N2(g)+3H2(g) (b) Diborane:B2H6(g)â¶2B(g)+3H2(g)B2H6(g)â¶2B(g)+3H2(g) (c) Hydrazine:N2H4(g)â¶N2(g)+2H2(g)N2H4(g)â¶N2(g)+2H2(g) (d) Hydrogen peroxide:H2O2(l)â¶H2O(g)+12O2(g)H2O2(l)â¶H2O(g)+12O2(g)

chemistry


Classify each of the following molecules as polar or nonpolar. You may wish to review the chapter on chemical bonding. (a) SiH4 (b) Si2H6 (c) SiCl3H (d) SiF4 (e) SiCl2F2

chemistry


Describe the properties of the dust grains found in the space between stars.

astronomy


Discuss the differences between average power and instantaneous power.

physics


{\iiint\limits_{R}{3y\ dV}}, where R = \left\\{ {\left. \left( {x,y,z} \right) \right|0 \leq x \leq 1,0 \leq y \leq x,0 \leq z \leq \sqrt{9 - y^{2}}} \right\\}

mathematics


mathematics


How much force would be needed to cause a 17 kg â m/s change in the momentum of an object, if the force acted for 5 seconds?

physics


What are some biases that minorities and women face in acquiring funding?

business


y varies directly as the square of x. If when x = 3,\mspace{9mu} y = 36, find y if x = 4.

mathematics


biology


Which person or organization defined the concept of value neutrality?

sociology


What is the atomic number of the most strongly bound nuclide?

physics


What kind of lifecycles do businesses go through? Why?

business


Explain the role of bile salts and lecithin in the emulsification of lipids (fats).

biology


A system consisting of 20.0 mol of a monoatomic ideal gas is cooled at constant pressure from a volume of 50.0 L to 10.0 L. The initial temperature was 300 K. What is the change in entropy of the gas?

physics


(a) Calculate BEN for {}^{235}\text{U} , the rarer of the two most common uranium isotopes; (b) Calculate BEN for {}^{238}\text{U} . (Most of uranium is {}^{238}\text{U} .)

physics


The criminal act necessary to commit a crime is known as:    A. Malice aforethought.   B. Mens rea.   C. Subjective fault.   D. Actus reus.

business


Which of the following nutritional deficiencies can impact hematologic wellness across the lifespan?

nursing


Describe one cardiac cycle, beginning with both atria and ventricles relaxed.

biology


How many hormones are produced by the posterior pituitary?

biology


Explain why each element has a unique spectrum of absorption or emission lines.

astronomy


The difference of _s_ and one-twelfth is one fourth.

mathematics


What problems did Taft’s foreign policy create for the United States?

history


[LO 8.6](8-6-define-the-purpose-of-a-bank-reconciliation-and-prepare-a-bank- reconciliation-and-its-associated-journal-entries) Which of the following items are found on a book side of the bank reconciliation?    A. beginning bank balance   B. outstanding checks   C. interest income   D. error made by bank

business


What are some of the benefits and drawbacks of native application development?

computer_science


(a) At what speed will a proton move in a circular path of the same radius as the electron in the previous exercise? (b) What would the radius of the path be if the proton had the same speed as the electron? (c) What would the radius be if the proton had the same kinetic energy as the electron? (d) The same momentum?

physics


Can a mere idea be considered a trade secret?    A. No. Just as you cannot patent or copyright a mere idea, you cannot protect a mere idea with a trade secret.   B. Yes. Under the Uniform Trade Secrets Act, even an idea can sometimes be considered a trade secret.

business


If centripetal force is directed toward the center, why do you feel that you are âthrownâ away from the center as a car goes around a curve? Explain.

physics


Predict the effect on a photonâs wavelength of a collision with an electron.

physics


The owner of a baseball team is interested in the relationship between player salaries and team winning percentage. They take a random sample of 100 players from different organizations.

mathematics


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 deployment technologies 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


A guitar string oscillates at a frequency of 100 Hz and produces a sound wave. (a) What do you think the frequency of the sound wave is that the vibrating string produces? (b) If the speed of the sound wave is   v = 343\ \text{m/s,} what is the wavelength of the sound wave?

physics


For the molecule allene,H2C=C=CH2,H2C=C=CH2,give the hybridization of each carbon atom. Will the hydrogen atoms be in the same plane or perpendicular planes?

chemistry


Joe runs a small barbershop. Most of his customers pay with cash. He has only a few monthly expenses including wages for one employee and utilities. Which method of accounting should Joe use?

business


Write two balanced chemical equations in which sulfuric acid acts as an oxidizing agent.

chemistry


Bacteriocins and defensins are types of which of the following?    A. leukotrienes   B. cytokines   C. inflammation-eliciting mediators   D. antimicrobial peptides

biology


Given the decline in union membership over the past 50 years, what does the theory of bilateral monopoly suggest will have happened to the equilibrium level of wages over time?  Why?

economics


Star Trek fans have often heard the term âantimatter drive.â Describe how you could use a magnetic field to trap antimatter, such as produced by nuclear decay, and later combine it with matter to produce energy. Be specific about the type of antimatter, the need for vacuum storage, and the fraction of matter converted into energy.

physics


What is the postulate having to do with reference frames on which the theory of special relativity is based?

physics


mathematics


Explain why an information system architecture is considered an architecture view in TOGAF.

computer_science


Heavy water, D2O (molar mass = 20.03 g molâ1), can be separated from ordinary water, H2O (molar mass = 18.01), as a result of the difference in the relative rates of diffusion of the molecules in the gas phase. Calculate the relative rates of diffusion of H2O and D2O.

chemistry


If a car has a suspension system with a force constant of 5.00\ \times \ 10^{4}\ \text{N/m} , how much energy must the car’s shocks remove to dampen an oscillation starting with a maximum displacement of 0.0750 m?

physics


Describe the difference between normative and descriptive ethical theories.

business


Combing your hair leads to excess electrons on the comb. How fast would you have to move the comb up and down to produce red light?

physics


[LO 12.3](12-3-define-and-apply-accounting-treatment-for-contingent- liabilities) Which of the following best describes a contingent liability that is unlikely to occur?    A. remote   B. probable and estimable   C. reasonably possible   D. probable and inestimable

business


Can a quantum particle ‘escape’ from an infinite potential well like that in a box? Why? Why not?

physics


Energy transfers take place constantly in everyday activities. Think of two scenarios: cooking on a stove and driving. Explain how the second law of thermodynamics applies to these two scenarios.

biology


Solvex2+7x+3=0using the quadratic formula.

mathematics


Observation is the phase in which entrepreneurs explore problems that requires solution. Which is not a step in this phase? talk to clients and conduct research for potential solutiondetermine if change is neededexperiment and analyze potential solutionNone of these options is correct.

business


Which vitamin has the greatest chance of toxicity if taken in large doses?

nursing


(a) Another airplane is flying in a jet stream that is blowing at 45.0 m/s in a direction \text{20º} south of east (as in [Exercise 3.58](3-problems- exercises#eip-741) ). Its direction of motion relative to the Earth is 45.0º south of west, while its direction of travel relative to the air is 5.00º south of west. What is the airplane’s speed relative to the air mass? (b) What is the airplane’s speed relative to the Earth?

physics


A swimmer in the ocean observes one day that the ocean surface waves are periodic and resemble a sine wave. The swimmer estimates that the vertical distance between the crest and the trough of each wave is approximately 0.45 m, and the distance between each crest is approximately 1.8 m. The swimmer counts that 12 waves pass every two minutes. Determine the simple harmonic wave function that would describes these waves.

physics


What factors contribute to a growing interest in entrepreneurship? unemployment levelslow job turnover ratesincreasing levels of creativitydecreasing rates of discrimination

business


If you are an investor concerned about unexpected inflation in the coming years which of the following investments offers the greatest protection against inflation, and why: T-notes, T-bonds, or TIPS?

business


All continuous functions have an antiderivative.

mathematics


Open theBuild an Atom simulation. (a) Drag protons, neutrons, and electrons onto the atom template to make a neutral atom of Oxygen-16 and give the isotope symbol for this atom. (b) Now add two more electrons to make an ion and give the symbol for the ion you have created.

chemistry


Do Kirchhoff’s rules apply to circuits that contain inductors and capacitors?

physics


_Lactobacillus acidophilus_ grows best at pH 4.E. It is considered a(n) ________.

biology


A 1100-kg car pulls a boat on a trailer. (a) What total force resists the motion of the car, boat, and trailer, if the car exerts a 1900-N force on the road and produces an acceleration of 0\text{.}\text{550 m/s}^{2} ? The mass of the boat plus trailer is 700 kg. (b) What is the force in the hitch between the car and the trailer if 80% of the resisting forces are experienced by the boat and trailer?

physics


[LO 3.5](3-5-use-journal-entries-to-record-transactions-and-post-to-t- accounts) What does the term _recognize_ mean?

business


Two vectors are equal in magnitude and opposite in direction. What is the magnitude of their resultant vector?

physics


Using the Bohr model, determine the energy of an electron withn= 8 in a hydrogen atom.

chemistry


Under what conditions might wires in a DC circuit emit electromagnetic waves?

physics


What are the structural and functional similarities and differences between mitochondria and chloroplasts?

biology


A plane that divides an animal into dorsal and ventral portions is ________.

biology


mathematics


What is metadata and what is involved in cataloging them?

computer_science


Identify whether the market supply curve will shift right or left or will stay the same for the following:    A. Firms in an industry are required to pay a fine for their carbon dioxide emissions.   B. Companies are sued for polluting the water in a river.   C. Power plants in a specific city are not required to address the impact of their air quality emissions.   D. Companies that use fracking to remove oil and gas from rock are required to clean up the damage.

economics


Which of the following wasnotlisted as a barrier to mental health treatment?

psychology


A Carnot engine is used to measure the temperature of a heat reservoir. The engine operates between the heat reservoir and a reservoir consisting of water at its triple point. (a) If 400 J per cycle are removed from the heat reservoir while 200 J per cycle are deposited in the triple-point reservoir, what is the temperature of the heat reservoir? (b) If 400 J per cycle are removed from the triple-point reservoir while 200 J per cycle are deposited in the heat reservoir, what is the temperature of the heat reservoir?

physics


Write two complete, balanced equations for each of the following reactions, one using condensed formulas and one using Lewis structures. (a) 2-butene reacts with chlorine. (b) benzene burns in air.

chemistry


LO2.1Identify one similarity and one difference between expenses and losses. Why is this distinction important to stakeholders?

business


Suppose you have discovered a new cepheid variable star. What steps would you take to determine its distance?

astronomy


Chemical messages often sent between two members of a species to communicate something about reproductive status are called ________.

psychology


Which scientist proposed adding a kingdom for protists?    A. Carolus Linnaeus   B. Carl Woese   C. Robert Whittaker   D. Ernst Haeckel

biology


Draw the Lewis electron dot structures for these molecules, including resonance structures where appropriate: (a)CS32âCS32â (b) CS2 (c) CS (d) predict the molecular shapes forCS32âCS32âand CS2and explain how you arrived at your predictions

chemistry


Which adverse effect should the nurse caution the client taking amoxicillin-clavulanate to expect?

nursing


In sound, pitch is measured in _____, and volume is measured in _____.

biology


Two sound speakers are separated by a distance _d_ , each sounding a frequency _f_ . An observer stands at one speaker and walks in a straight line a distance _x_ , perpendicular to the the two speakers, until he comes to the first maximum intensity of sound. The speed of sound is _v_ . How far is he from the speaker?

physics


f(x) = 3\sin\left( {x - \frac{\pi}{4}} \right) - 4

mathematics


According to your lab partner, a 2.00-cm-thick sodium-iodide crystal absorbs all but 10\text{\%} of rays from a radioactive source and a 4.00-cm piece of the same material absorbs all but 5\text{\%}? Is this result reasonable?

physics


[T]Using your function from the previous problem, find exactly how far the Bugati Veyron traveled in the 1 min 40 sec included in the graph.

mathematics


Solve the formula 6x + 5y = 20 for y\text{:}    A. ⓐ when x=0x=0   B. ⓑ in general

mathematics


Iodine forms a series of fluorides (listed here). Write Lewis structures for each of the four compounds and determine the formal charge of the iodine atom in each molecule: (a) IF (b) IF3 (c) IF5 (d) IF7

chemistry


The hypothalamus is functionally and anatomically connected to the posterior pituitary lobe by a bridge of ________.

biology


How much SSI is paid by a person with an annual income of $183,500?

mathematics


Which of the following was _not_ a vehicle for the farmers’ protest?    A. the Mugwumps   B. the Grange   C. the Farmers’ Alliance   D. the People’s Party

history


mathematics


How did the Boxer Rebellion strengthen American ties with China? The United States supported the rebels and gained their support.The United States provided troops to fight the rebels.The United States sent arms and financial support to the Chinese government.The United States thwarted attempts by Great Britain and Germany to fortify the rebels.

history


Osteoporosis is a condition where bones become weak and brittle. It is caused by an imbalance in the activity of which cells?

biology


Which of the following individuals is credited for definitively refuting the theory of spontaneous generation using broth in swan-neck flask?    A. Aristotle   B. Jan Baptista van Helmont   C. John Needham   D. Louis Pasteur

biology


What is a primary function of tumor suppressor genes?

biology


economics


Focus at \left( {2,\frac{9}{8}} \right); directrix is y = \frac{7}{8}

mathematics


Which type of distribution does the graph illustrate? Figure5.30

business


Steve’s car holds 55 liters of gas. Convert this to gallons.

mathematics


Write the Lewis symbols for each of the following ions: (a) As3â (b) Iâ (c) Be2+ (d) O2â (e) Ga3+ (f) Li+ (g) N3â

chemistry


Compare the properties of the volcanoes on Io with those of terrestrial volcanoes. Give at least two similarities and two differences.

astronomy


The charge per unit length on the thin rod shown here is \lambda. What is the electric force on the point charge _q_ ? (See the preceding problem.)

physics


Will the focal length of a lens change when it is submerged in water? Explain.

physics


Identify and describe two benefits of a comprehensive sex education curriculum.

psychology


Calcified lesions called _______ form in the lungs of patients with TB.

biology


PaaS is a standard acronym for Platform as a Service. Explain how cloud PaaS works to enhance data analytics. Explain how PaaS can help with the TRM performance quality.

computer_science


The lambdoid suture joins the parietal bone to the ________.

biology


How different individuals respond to the same stressor:

psychology


Compose a paragraph (150â200 words) using all of the following terms as they relate to personal selling. The goal is to prove you understand the meaning of each term.Terms:Order takersInside order takersOutside order takersOrder gettersSupport personnelMissionary salespeopleTechnical specialistsTeam selling

business


The client has returned to the clinic for a follow-up appointment after being diagnosed with osteoporosis. Which of the following statements by the client indicates they have followed the recommended diet to manage their condition?

nursing


mathematics


What are the main challenges involved in sending probes to the giant planets?

astronomy


Explain why the pH does not change significantly when a small amount of an acid or a base is added to a solution that contains equal amounts of the base NH3and a salt of its conjugate acid NH4Cl.

chemistry


States A, B, C, and D received 21, 25, 26, and 28 seats respectively.  When the population remains the same, but house size is increased, the reapportionment is A 20, B 26, C 27, and D 29.

mathematics


Both of the regular intravenous solutions administered in medicine, normal saline and lactated Ringerâs solution, are isotonic. Why is this important?

biology


Why do mammalian eggs have a small concentration of yolk, while bird and reptile eggs have a large concentration of yolk?

biology


Which of the following was a disadvantage of machine politics? Immigrants did not have a voice.Taxpayers ultimately paid higher city taxes due to graft.Only wealthy parts of the city received timely responses.Citizens who voiced complaints were at risk for their safety.

history


Explain why it onlyappearsthat we are at the center of expansion of the universe and why an observer in another galaxy would see the same relative motion of all but the closest galaxies away from her.

physics


(a) All but the closest galaxies are receding from our own Milky Way Galaxy. If a galaxy 12.0\ \times \ 10^{9}\ \text{ly} away is receding from us at 0.900 _c_ , at what velocity relative to us must we send an exploratory probe to approach the other galaxy at 0.990 _c_ as measured from that galaxy? (b) How long will it take the probe to reach the other galaxy as measured from Earth? You may assume that the velocity of the other galaxy remains constant. (c) How long will it then take for a radio signal to be beamed back? (All of this is possible in principle, but not practical.)

physics


A fan is rotating at a constant 360.0 rev/min. What is the magnitude of the acceleration of a point on one of its blades 10.0 cm from the axis of rotation?

physics


Imagine you are responsible for designing a playground or a physical education program for young children. How would you ensure that it supports both gross and fine motor development? Consider the needs of children with different abilities and backgrounds in your design. What specific features or activities would you include to promote inclusive motor development?

psychology


The belief that cutting taxes for the rich will eventually result in economic benefits for the poor is commonly referred to as ________. socialismpork barrel politicsKeynesian economicstrickle-down economics

history


Jennifer ran 2.8 miles. Convert this length to kilometers. _(1 mile = 1.61 kilometers)_

mathematics


What are some ways to overcome collective action problems?

political_science


Calculate413â1513without a calculator. If not possible, explain why.

mathematics


Which of these groups is most likely to vote in an election?

political_science


Which of the following is _not_ part of a scientific poll design?    A. a leading question   B. a random sample   C. a representative sample   D. a low margin of error

political_science


What is the direction of the magnetic force on a positive charge that moves as shown in each of the six cases?

physics


Consider a system with a certain energy content, from which we wish to extract as much work as possible. Should the systemâs entropy be high or low? Is this orderly or disorderly? Structured or uniform? Explain briefly.

physics


What would you do, as an entrepreneur, to make your employees feel you value their input and that they are free to speak honestly?

business


Integrated Concepts The 70.0-kg swimmer in [Figure 7.41](7-problems- exercises#import-auto-id1412118) starts a race with an initial velocity of 1.25 m/s and exerts an average force of 80.0 N backward with his arms during each 1.80 m long stroke. (a) What is his initial acceleration if water resistance is 45.0 N? (b) What is the subsequent average resistance force from the water during the 5.00 s it takes him to reach his top velocity of 2.50 m/s? (c) Discuss whether water resistance seems to increase linearly with velocity.

physics


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 EAMs and EAFs 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


According to wave theory, what is necessary to eject electrons from a surface?

physics


What is the goal of an anti-inflammatory diet for clients with RTI and pneumonia?

nursing


Determine the Cartesian equation describing the orbit of Pluto, the most eccentric orbit around the Sun. The length of the major axis is 39.26 AU and minor axis is 38.07 AU. What is the eccentricity?

mathematics


Compare and contrast the right and left lungs.

biology


political_science


LO10.3Search the internet for information about the technological breakthrough relating to inventory issues, referred to as the Internet of Things (IoT). How do you think the development of such technology will change the way accountants manage inventory in the future? Provide the weblink to the source or sources of your information.

business


Second quartile = median = 50thpercentile = _______

mathematics


Find the maximal directional derivative magnitude and direction for the function f\left( {x,y} \right) = x^{3} + 2xy - \text{cos}\left( {\pi y} \right) at point \left( {3,0} \right).

mathematics


mathematics


_Pseudomonas aeruginosa_ is a common pathogen that infects the airways of patients with cystic fibrosis. It does not grow in the absence of oxygen. The bacterium is probably which of the following?    A. an aerotolerant anaerobe   B. an obligate aerobe   C. an obligate anaerobe   D. a facultative anaerobe

biology


Consider the types of derogatory labeling that sociologists study and explain how these might apply to discrimination on the basis of sexual orientation.

sociology


Compare and contrast supply-based opportunities and demand-based opportunities.

business


Which business model earns commissions by promoting and selling other companiesâ products or services through websites or social media channels?

computer_science


physics


Social capital encourages political participation because:

political_science


Under the mayor-council system, the ________.    A. legislative and executive responsibilities are separated   B. political and administrative functions are separated   C. mayor chairs the city council   D. city council selects the mayor

political_science


Pick three cons of business ownership and strategize how to turn them into pros.

business


How could grammatical errors actually be indicative of language acquisition in children?

psychology


State which of the following species are amphiprotic and write chemical equations illustrating the amphiprotic character of these species. (a) \text{NH}_{3} (b) \text{HPO}_{4}{}^{\text{2−}} (c) Br − (d) \text{NH}_{4}{}^{\text{+}} (e) \text{AsO}_{4}{}^{\text{3−}}

chemistry


(a) By how many percent is the torque of a motor decreased if its permanent magnets lose 5.0% of their strength? (b) How many percent would the current need to be increased to return the torque to original values?

physics


The cell found in bone that makes the bone is called an ________.

biology


Explain why CH4is one of the most common molecules found in nature. Are the bonds between the atoms ionic or covalent?

biology


What type of memory access is described as computer memory architecture where access time to any memory location is the same across all processors?

computer_science


[LO 13.3](13-3-prepare-journal-entries-to-reflect-the-life-cycle-of-bonds) Huang Inc. issued 100 bonds with a face value of $1,000 and a 5-year term at $960 each. The journal entry to record this transaction includes ________.    A. a debit to Bonds Payable for $100,000   B. a debit to Discount on Bonds Payable for $4,000   C. a credit to cash for $96,000   D. a credit to Discount on Bonds Payable for $4,000

business


LO6.5What is the primary difference between variable costing and absorption costing?

business


Selective serotonin reuptake inhibitors have been shown to reduce chronic pain in some cases. Where could these drugs be acting to have this effect?

psychology


What is typically the top frequency that adults over 20 can hear: 17 Hz, 170 Hz, 1,700 Hz, 17,000 Hz?

mathematics


biology


LO11.4Dinaro Inc. is looking at an investment project that has an NPV of ($5,000). The hurdle rate is 8%.

business


What happens toÎGÎG(becomes more negative or more positive) for the following chemical reactions when the partial pressure of oxygen is increased? (a)S(s)+O2(g)â¶SO2(g)S(s)+O2(g)â¶SO2(g) (b)2SO2(g)+O2(g)â¶2SO3(g)2SO2(g)+O2(g)â¶2SO3(g) (c)HgO(s)â¶Hg(l)+O2(g)HgO(s)â¶Hg(l)+O2(g)

chemistry


Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 20 rubs, at a distance of 7.50 cm per rub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warmed is only 0.100 kg, mostly in the palms and fingers.

physics


Referring to [Figure 11.19](11-7-archimedes-principle) , prove that the buoyant force on the cylinder is equal to the weight of the fluid displaced (Archimedes’ principle). You may assume that the buoyant force is F_{2} - F_{1} and that the ends of the cylinder have equal areas A . Note that the volume of the cylinder (and that of the fluid it displaces) equals ({h_{2} - h_{1}})A .

physics


Last month, Stan’s take-home pay was \text{\$3,816} and his expenses were \text{\$3,472.} How much of his take-home pay did Stan have left after he paid his expenses?

mathematics


Edna is living in a retirement home where most of her needs are taken care of, but she has some discretionary spending. Based on the basket of goods in [Table 22.5](22-self-check-questions#Table_22_08) , by what percentage does Edna’s cost of living increase between time 1 and time 2?  Items | Quantity | (Time 1) Price | (Time 2) Price   ---|---|---|---   Gifts for grandchildren | 12 | $50 | $60   Pizza delivery | 24 | $15 | $16   Blouses | 6 | $60 | $50   Vacation trips | 2 | $400 | $420   Table 22.5

economics


What is 1 radian approximately in degrees?

physics


Do you feel yourself thrown to either side when you negotiate a curve that is ideally banked for your carâs speed? What is the direction of the force exerted on you by the car seat?

physics


mathematics


What was Lincolnâs primary goal immediately following the Civil War? punishing the rebel statesimproving the lives of formerly enslaved peoplereunifying the countrypaying off the debts of the war

history


When do firms receive money from a stock sale in their firm and when do they not receive money?

economics


Plot the two given points on the following graph. Then, connect the two points to form the regression line. Figure12.31 Obtain the graph on your calculator or computer.

mathematics


Suppose two long straight wires run perpendicular to one another without touching. Does one exert a net force on the other? If so, what is its direction? Does one exert a net torque on the other? If so, what is its direction? Justify your responses by using the right hand rules.

physics


Atoms in a crystal lattice vibrate in simple harmonic motion. Assuming a lattice atom has a mass of 9.4\ \times \ 10^{-26}\ \text{kg} , what is the force constant of the lattice if a lattice atom makes a transition from the ground state to first excited state when it absorbs a \text{525-}µ\text{m} photon?

physics


What were the implications of _McCulloch v. Maryland_ for federalism?

political_science


Automobiles are often used as an analogy to help people better understand how more massive stars have much shorter main-sequence lifetimes compared to less massive stars. Can you explain such an analogy using automobiles?

astronomy


Why are there more sole proprietorships than any other business entity in the US?

business


A metal rod is used to conduct heat between two reservoirs at temperatures T_{\text{h}}\ \text{and}\ T_{\text{c}}, respectively. When an amount of heat _Q_ flows through the rod from the hot to the cold reservoir, what is the net entropy change of the rod, the hot reservoir, the cold reservoir, and the universe?

physics


The power of a physician’s eyes is 53.0 D while examining a patient. How far from her eyes is the object that is being examined?

physics


Which of the following was NOT a kingdom in Linnaeus’s taxonomy?    A. animal   B. mineral   C. protist   D. plant

biology


The disk method can be used in any situation in which the washer method is successful at finding the volume of a solid of revolution.

mathematics


Have you ever experienced service that was so poor that you did not return? Compare your views with someone that you know. Is this a common service issue?

business


In what ways did Shaysâ Rebellion reveal the weaknesses of the Articles of Confederation?

political_science


Which period is the stage of disease during which the patient begins to present general signs and symptoms?    A. convalescence   B. incubation   C. illness   D. prodromal

biology


Some argue that animal research is inherently flawed in terms of being ethical because unlike human participants, animals do not consent to be involved in research. Do you agree with this perspective? Given that animals do not consent to be involved in research projects, what sorts of extra precautions should be taken to ensure that they receive the most humane treatment possible?

psychology


Why was Herbert Hooverâs response to the initial months of the Great Depression so limited in scope?

history


mathematics


How many unpaired electrons are present in each of the following? (a) [CoF 6 ] 3− (high spin) (b) [Mn(CN) 6 ] 3− (low spin) (c) [Mn(CN) 6 ] 4− (low spin) (d) [MnCl 6 ] 4− (high spin) (e) [RhCl 6 ] 3− (low spin)

chemistry


Which of the following is found both in eukaryotic and prokaryotic cells?

biology


An _RLC_ series circuit has a 1.00\ k\Omega resistor, a 150\ \mu H inductor, and a 25.0 nF capacitor. (a) Find the circuit’s impedance at 500 Hz. (b) Find the circuit’s impedance at 7.50 kHz. (c) If the voltage source has {V_{\text{rms}} = \text{408}}\ \text{V} , what is I_{\text{rms}}{} at each frequency? (d) What is the resonant frequency of the circuit? (e) What is I_{\text{rms}}{} at resonance?

physics


In considering the three dimensions of happiness discussed in this section (the pleasant life, the good life, and the meaningful life), what are some steps you could take to improve your personal level of happiness?

psychology


You friend wonders how a rocket continues to climb into the sky once it is sufficiently high above the surface of Earth so that its expelled gasses no longer push on the surface. How do you respond?

physics


Identify two factors that might help to explain the increase in gray divorces in the United States.

psychology


Setting aside Social Security and Medicare, other entitlement programs in the U.S. government ________.

political_science


The movement of mineral nutrients through organisms and their environment is called a ________ cycle.

biology


A triglyceride is formed by joining three glycerol molecules to a fatty acid backbone in a dehydration reaction.

biology


The large muscle group that attaches the leg to the pelvic girdle and produces extension of the hip joint is the ________ group.

biology


How does the finite range of the nuclear force relate to the fact thatBE/ABE/Ais greatest forAAnear 60?

physics


What is the position of the body when it is in the ânormal anatomical position?â

biology


Which of the following is a major structural brain defect characterized by the incomplete closure of the neural tube during embryonic development?

psychology


The nurse is providing instruction to a client with newly diagnosed intracranial hypertension with increased intracranial pressure. On which of the following drugs should the nurse provide client education?

nursing


LO1.2Computerized accounting systems help businesses efficiently record and utilize financial information. QuickBooks is a popular software package for small businesses. Explore the QuickBooks website at https://quickbooks.intuit.com/. Select one of the QuickBooks plans, and discuss some of the capabilities of the software. Taking the perspective of a small business owner, explain how this software might help the business.

business


Explore the behavior of the graph of f(x) around x = 1 by graphing the function on the following domains, [0.9, 1.1], [0.99, 1.01], [0.999, 1.001], and [0.9999, 1.0001]. Use this information to determine whether the function appears to be differentiable at x = 1.

mathematics


Explain how the normative approach to stakeholder theory informs the instrumental aspect and the descriptive approach.

business


(a) If a 500-mL glass beaker is filled to the brim with ethyl alcohol at a temperature of 5\text{.}\text{00}\text{º}\text{C,} how much will overflow when its temperature reaches \text{22}\text{.}0\text{º}\text{C} ? (b) How much less water would overflow under the same conditions?

physics


mathematics


In part, what aspect of psychology was the behaviorist approach to psychology a reaction to?

psychology


Does a neutron have an antimatter counterpart?

physics


How would a decrease in energy prices affect the Phillips curve?

economics


Which of the following isnottrue of the Puritan religion? It required close reading of scripture.Church membership required a conversion narrative.Literacy was crucial.Only men could participate.

history


When 50.0 g of 0.200 M NaCl(aq) at 24.1 Â°C is added to 100.0 g of 0.100 M AgNO3(aq) at 24.1 Â°C in a calorimeter, the temperature increases to 25.2 Â°C as AgCl(s) forms. Assuming the specific heat of the solution and products is 4.20 J/g Â°C, calculate the approximate amount of heat in joules produced.

chemistry


Participating in the gig economy often means working for a company as a part-time worker with no guarantee the job will last. Why would someone do it?

business


What effect will the internal resistance of a rechargeable battery have on the energy being used to recharge the battery?

physics


The most primitive phylum of fungi is the ________.

biology


Reflect on how your cognitive abilities evolved during adolescence, specifically in terms of your ability to think abstractly and reason logically. Provide examples from your teenage years where you engaged in hypothetical reasoning or complex problem-solving. How did your environment, such as your family, school, or culture, influence your cognitive development during this time?

psychology


The thickness of a piece of paper is about 0.097 millimeter.

mathematics


A job setting in which an employee gym and a snack bar featuring healthy foods and beverages were perks would benefit which of these groups?    A. the owners/managers   B. the customers or clients of the firm   C. the employees   D. all the above

business


A plane flew 4 hours at 380 miles per hour. What distance was covered?

mathematics


Write the ionic equation for dissolution and the solubility product (Ksp) expression for each of the following slightly soluble ionic compounds: (a) PbCl2 (b) Ag2S (c) Sr3(PO4)2 (d) SrSO4

chemistry


What was the âconspiracyâ of the New York Conspiracy Trials of 1741? American patriots conspiring to overthrow the royal governmentindentured servants conspiring to overthrow their contract holdersEnslaved people conspiring to burn down the city and take controlProtestants conspiring to murder Catholics

history


What is the expected value of this game?

mathematics


â«4âsin2(x)sin2(x)cos(x)dxâ«4âsin2(x)sin2(x)cos(x)dxusing a table of integrals or a CAS

mathematics


Suppose you are given the task of measuring the colors of the brightest stars, listed inAppendix J, through three filters: the first transmits blue light, the second transmits yellow light, and the third transmits red light. If you observe the star Vega, it will appear equally bright through each of the three filters. Which stars will appear brighter through the blue filter than through the red filter? Which stars will appear brighter through the red filter? Which star is likely to have colors most nearly like those of Vega?

astronomy


Who created the very first modern hospice?

psychology


Use the divergence theorem to compute the value of the flux integral over the unit sphere with \mathbf{\text{F}}(x,y,z) = 3z\mathbf{\text{i}} + 2y\mathbf{\text{j}} + 2x\mathbf{\text{k}}.

mathematics


On February 15, 2013, a superbolide meteor (brighter than the Sun) entered Earth’s atmosphere over Chelyabinsk, Russia, and exploded at an altitude of 23.5 km. Eyewitnesses could feel the intense heat from the fireball, and the blast wave from the explosion blew out windows in buildings. The blast wave took approximately 2 minutes 30 seconds to reach ground level. The blast wave traveled at 10° above the horizon. (a) What was the average velocity of the blast wave? b) Compare this with the speed of sound, which is 343 m/s at sea level.

physics


Predict which of the following compounds are ionic and which are covalent, based on the location of their constituent atoms in the periodic table: (a) Cl2CO (b) MnO (c) NCl3 (d) CoBr2 (e) K2S (f) CO (g) CaF2 (h) HI (i) CaO (j) IBr (k) CO2

chemistry


Using the same mean, standard deviation, and sample size, how would the error bound change if the confidence level were reduced to 90%? Why?

mathematics


In the equation Îp=m(vfâvi), which quantity is considered to be constant?

physics


Describe the differences between single-unit smooth muscle and multiunit smooth muscle.

biology


Jack is driving from Bangor to Portland at a rate of 68 miles per hour. The distance is 107 miles. To the nearest tenth of an hour, how long will the trip take?

mathematics


Serotonin neurons originate within the ________ and project to every part of the brain.

psychology


If molecular orbitals are created by combining five atomic orbitals from atom A and five atomic orbitals from atom B combine, how many molecular orbitals will result?

chemistry


mathematics


Glucagon is the peptide hormone that signals for the body to release glucose into the bloodstream. How does glucagon contribute to maintaining homeostasis throughout the body? What other hormones are involved in regulating the blood glucose cycle?

biology


Hans Selye noticed that physiological responses to different stressors were:

psychology


Discuss the concept of intersectionality and how it applies to the development of identity in early adulthood. Provide examples of how different aspects of identity (e.g., race, gender, sexuality, and religion) intersect and influence each other. How might these intersections create unique challenges or opportunities for identity exploration? You should also reflect on how intersectionality has impacted your own identity development or that of someone you know.

psychology


Which structure is associated with the embryologic development of the peripheral nervous system?

biology


List four modules of a customer relationship management system.

computer_science


Clusters of neurons in the medulla oblongata that regulate blood pressure are known collectively as ________.

biology


[LO 9.3](9-3-determine-the-efficiency-of-receivables-management-using- financial-ratios) What information can best be elicited from a receivable ratio?    A. company performance with current debt collection   B. credit extension effect on cash sales   C. likelihood of future customer bankruptcy filings   D. an increase in future credit sales to current customers

business


The prevalence of most psychological disorders has increased since the 1980s. However, as discussed in this section, scientific publications regarding dissociative amnesia peaked in the mid-1990s but then declined steeply through 2003. In addition, no fictional or nonfictional description of individuals showing dissociative amnesia following a trauma exists prior to 1800. How would you explain this phenomenon?

psychology


Enter the data from [Table 1](4-practice-test#Table_04_08_14) into a graphing calculator and graph the resulting scatter plot. Determine whether the data from the table would likely represent a function that is linear, exponential, or logarithmic.  **_x_**| ** _f(x)_**   ---|---   1| 3   2| 8.55   3| 11.79   4| 14.09   5| 15.88   6| 17.33   7| 18.57   8| 19.64   9| 20.58   10| 21.42   Table 1

mathematics


Why can it be difficult to decide what a âmarketâ is for purposes of measuring competition?

economics


Would you usually expect GDP as measured by what is demanded to be greater than GDP measured by what is supplied, or the reverse?

economics


You are a crime scene investigator attempting to determine the time of death of a victim. It is noon and45Â°F45Â°Foutside and the temperature of the body is78Â°F.78Â°F.You know the cooling constant isk=0.00824Â°F/min.k=0.00824Â°F/min.When did the victim die, assuming that a humanâs temperature is98Â°F98Â°F?

mathematics


Distinguish between civil and criminal law.

business


business


Is surface tension due to cohesive or adhesive forces, or both?

physics


A round pencil lying on its side as inFigure 9.12is in neutral equilibrium relative to displacements perpendicular to its length. What is its stability relative to displacements parallel to its length?

physics


Lime, CaO, is produced by heating calcium carbonate, CaCO 3 ; carbon dioxide is the other product. (a) Outline the steps necessary to answer the following question: What volume of carbon dioxide at 875 K and 0.966 atm is produced by the decomposition of 1 ton (1.000 \times 10 3 kg) of calcium carbonate?(b) Answer the question.

chemistry


How can you manage your emotions when reading and thinking about philosophy?

philosophy


How did our exploration of the Moon differ from that of Mercury (and the other planets)?

astronomy


A near-sighted person has afar point of 80 cm. (a) What kind of corrective lens will the person need assuming the distance to the contact lens from the eye is zero? (b) What would be the power of the contact lens needed?

physics


In an enzyme immunoassay, the enzyme    A. is bound by the antibody’s antigen-binding site.   B. is attached to the well of a microtiter plate.   C. is conjugated to the suspect antigen.   D. is bound to the constant region of the secondary antibody.

biology


What role does discovery play in an infringement case?    A. Through production of documents and interrogatories, either side may discover information that may be decisive in confirming or rebutting infringement claims.   B. Discovery is often an endless fishing expedition that escalates the costs to both parties exponentially.   C. Both of these describe the role of discovery in an infringement case.

business


Why did many in the North resist the Fugitive Slave Act?

history


A nurse is teaching a client diagnosed with osteoporosis secondary to hyperparathyroidism about a new prescription for alendronate. Which adverse effect should the nurse teach the client to report to the health care provider?

nursing


Repeat the previous problem with a new magnetic field of (0.4\mathbf{\hat{i}} + 1.2\mathbf{\hat{k}})\text{T}.

physics


sociology


The ability of the brain to change and adapt in response to experiences is called ________.

psychology


What does the phenomenon of inattentional blindness suggest about the influence of top-down attentional goals on our perception?

psychology


If the rate of replication in a particular prokaryote is 900 nucleotides per second, how long would it take 1.2 million base pair genomes to make two copies?

biology


\cos\left( {\tan^{- 1}\left( x^{2} \right)} \right)

mathematics


________ refers to the physiological and behavioral effects of drugs, whereas ________ refers to the movement of the drug throughout the body.

psychology


biology


history


Which type of fiber could be considered the longest?

biology


mathematics


Young’s double-slit experiment breaks a single light beam into two sources. Would the same pattern be obtained for two independent sources of light, such as the headlights of a distant car? Explain.

physics


Over the last century, during what periods was the U.S. inflation rate highest and lowest?

economics


Which gender experiences more fear about opening a business? Why do you think it they are more fearful?

business


Which of the following wasnotone of the goals of the Townshend Acts? higher taxesgreater colonial unitygreater British control over the coloniesreduced power of the colonial governments

history


LO10.1Felipeâs Restaurant and Pie Shop needs help defining the costs for his business. He also wants to know which costs are relevant or irrelevant to his decision. Identify each cost as relevant or irrelevant. Then identify the type of cost (sunk, fixed, variable, or opportunity). CostRelevant or Irrelevant?Sunk, Fixed, Variable, or Opportunity?RentBaker wagesFelipeâs culinary school tuitionBerries for piesPainting dining area last yearFelipeâs decision not to attend graduate school

business


Which type of bias involves relying on a false stereotype to make a decision?

psychology


The severity of a fall depends on your speed when you strike the ground. All factors but the acceleration from gravity being the same, how many times higher could a safe fall occur on the Moon than on Earth (gravitational acceleration on the Moon is about one-sixth that of the Earth)?

physics


Determine the number of moles of compound and the number of moles of each type of atom in each of the following: (a) 25.0 g of propylene, C3H6 (b) 3.06ÃÃ10â3g of the amino acid glycine, C2H5NO2 (c) 25 lb of the herbicide Treflan, C13H16N2O4F (1 lb = 454 g) (d) 0.125 kg of the insecticide Paris Green, Cu4(AsO3)2(CH3CO2)2 (e) 325 mg of aspirin, C6H4(CO2H)(CO2CH3)

chemistry


The nurse is reviewing the dietary recall of a client recently diagnosed with hypothyroidism. Which of the following foods the client documented they ate frequently indicates the need for additional diet instruction?

nursing


In the U.S. Senate, it is customary to assign each senator a seniority ranking based on years of government service and the population of the state he or she represents. A top ranking gives the senator priority for assignments to office space, committee chair positions, and seating on the senate floor. What type of authority does this example best illustrate?    A. Dictatorial   B. Traditional   C. Charismatic   D. Legal-rational

sociology


What makes a personal quality part of someoneâs personality?

psychology


Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 17.5 N at a distance of 0.600 m from the hinges, and the second child pushes at a distance of 0.450 m. What force must the second child exert to keep the door from moving? Assume friction is negligible.

physics


How does activity on the Sun affect human technology on Earth and in the rest of the solar system?

astronomy


Is it possible to escape the force of gravity by going into orbit around Earth? How does the force of gravity in the International Space Station (orbiting an average of 400 km above Earthâs surface) compare with that on the ground?

astronomy


Explain how the heat measured inExample 5.5differs from the enthalpy change for the exothermic reaction described by the following equation:HCl(aq)+NaOH(aq)â¶NaCl(aq)+H2O(l)HCl(aq)+NaOH(aq)â¶NaCl(aq)+H2O(l)

chemistry


Identify and describe the use of the four deployment models used in cloud-based computing.

computer_science


Identify any graphs and/or multigraphs that are not Eulerian. If there are none, state so.

mathematics


LO14.2The following data was reported by Saturday Corporation: Authorized shares: 30,000Issued shares: 25,000Treasury shares: 5,000 How many shares are outstanding?

business


Describe a situation in which a choice you made was influenced by societal pressures.

sociology


In elementary schools, children receive instruction that is increasingly focused on ________.

psychology


An athlete is attempting to perform splits. From the information given in [Figure 9.34](9-problems-exercises#import-auto-id3517398) , calculate the magnitude and direction of the force exerted on each foot by the floor. Figure 9.34 An athlete performs full split. The center of gravity and the various distances from it are shown.

physics


Find the percentage of sums between 1.5 standard deviations below the mean of the sums and one standard deviation above the mean of the sums.

mathematics


mathematics


A relation that passes the horizontal and vertical line tests is a one-to-one function.

mathematics


A pure red object on a black background seems to disappear when illuminated with pure green light. Explain why.

physics


When teaching a client about healthy snack choices for their child to promote heart health, which snack choice would be the most appropriate?

nursing


What was the significance of the Petticoat affair?

history


The awe-inspiring Great Pyramid of Cheops was built more than 4500 years ago. Its square base, originally 230 m on a side, covered 13.1 acres, and it was 146 m high, with a mass of about 7 \times 10^{9}\ \text{kg} . (The pyramid’s dimensions are slightly different today due to quarrying and some sagging.) Historians estimate that 20,000 workers spent 20 years to construct it, working 12-hour days, 330 days per year. (a) Calculate the gravitational potential energy stored in the pyramid, given its center of mass is at one- fourth its height. (b) Only a fraction of the workers lifted blocks; most were involved in support services such as building ramps (see [Figure 7.42](7-problems-exercises#import-auto-id1499612) ), bringing food and water, and hauling blocks to the site. Calculate the efficiency of the workers who did the lifting, assuming there were 1000 of them and they consumed food energy at the rate of 300 kcal/h. What does your answer imply about how much of their work went into block-lifting, versus how much work went into friction and lifting and lowering their own bodies? (c) Calculate the mass of food that had to be supplied each day, assuming that the average worker required 3600 kcal per day and that their diet was 5% protein, 60% carbohydrate, and 35% fat. (These proportions neglect the mass of bulk and nondigestible materials consumed.)  Figure 7.42 Ancient pyramids were probably constructed using ramps as simple machines. (credit: Franck Monnier, Wikimedia Commons)

physics


Describe the differences in the four protein structures.

biology


Which of the following factors can affect the pay gap?

sociology


Platoâs ideal system of government is rule by __________.

political_science


What is the difference between assimilation and accommodation? Provide examples of each.

psychology


What is the purpose of the intellectual property right we call a trademark?    A. To protect the inventions of businesses.   B. To indicate the origin of goods or services.   C. To reward businesses for their creative works.

business


What type of meristem is found only in monocots, such as lawn grasses? Explain how this type of meristematic tissue is beneficial in lawn grasses that are mowed each week.

biology


Write as a whole number using digits: two hundred five thousand, six hundred seventeen.

mathematics


biology


Historians often mine the arts for clues to the social, cultural, political, and intellectual shifts that characterized a given era. How do the many works of visual art, literature, and social philosophy that emerged from this period reflect the massive changes that were taking place? How were Americansâboth those who created these works and those who read or viewed themâstruggling to understand the new reality through art, literature, and scholarship?

history


There are many naturally occurring microbes that have the ability to degrade several of the compounds found in oil.

biology


Describe the parts of a cost factor that might be used to determine if migrating to the cloud is cost effective.

computer_science


A fence has dimensions of 40 in by 25 in. Calculate the ratio of the sides rounded to the nearest tenth and determine if the size approximates a golden rectangle.

mathematics


Evaluate the determinant by expanding by minors:   \left| \begin{array}{rccrccr} 3 & & & -2 & & & -2 \\\ 2 & & & -1 & & & 4 \\\ -1 & & & 0 & & & -3 \end{array} \right|.

mathematics


Find the volume of the catenoidy=cosh(x)y=cosh(x)fromx=â1tox=1x=â1tox=1that is created by rotating this curve around thex-axis,x-axis,as shown here.

mathematics


Find the probability thatxfalls in the shaded area. Figure5.34

business


Assume that the force of a bow on an arrow behaves like the spring force. In aiming the arrow, an archer pulls the bow back 50 cm and holds it in position with a force of 150\ \text{N} . If the mass of the arrow is 50\ \text{g} and the “spring” is massless, what is the speed of the arrow immediately after it leaves the bow?

physics


Which submodality of taste is sensitive to the pH of saliva?

biology


The 18th hole at Pebble Beach Golf Course is a dogleg to the left of length 496.0 m. The fairway off the tee is taken to be the _x_ direction. A golfer hits his tee shot a distance of 300.0 m, corresponding to a displacement \text{Δ}\mathbf{\overset{\rightarrow}{r}}_{1} = 300.0\ \text{m}\mathbf{\hat{i}}, and hits his second shot 189.0 m with a displacement \text{Δ}\mathbf{\overset{\rightarrow}{r}}_{2} = 172.0\ \text{m}\mathbf{\hat{i}} + 80.3\ \text{m}\mathbf{\hat{j}}. What is the final displacement of the golf ball from where it started?

physics


business


One method of converting heat transfer into doing work is for heat transfer into a gas to take place, which expands, doing work on a piston, as shown in the figure below. (a) Is the heat transfer converted directly to work in an isobaric process, or does it go through another form first? Explain your answer. (b) What about in an isothermal process? (c) What about in an adiabatic process (where heat transfer occurred prior to the adiabatic process)? Figure15.39

physics


Calculate the Fe3+equilibrium concentration when 0.0888 mole of K3[Fe(CN)6] is added to a solution with 0.00010MCNâ.

chemistry


Integrated Concepts One scheme to put nuclear weapons to nonmilitary use is to explode them underground in a geologically stable region and extract the geothermal energy for electricity production. There was a total yield of about 4,000 MT in the combined arsenals in ࠖ. If 1.00 MT per day could be converted to electricity with an efficiency of 10.0%: (a) What would the average electrical power output be? (b) How many years would the arsenal last at this rate?

physics


mathematics


What is wrong with the following expressions? How can you correct them? (a) C = \mathbf{\overset{\rightarrow}{A}\overset{\rightarrow}{B}} , (b) \mathbf{\overset{\rightarrow}{C}} = \mathbf{\overset{\rightarrow}{A}\overset{\rightarrow}{B}} , (c) C = \mathbf{\overset{\rightarrow}{A}}\ \times \ \mathbf{\overset{\rightarrow}{B}} , (d) C = A\mathbf{\overset{\rightarrow}{B}} , (e) C + 2\mathbf{\overset{\rightarrow}{A}} = B , (f) \mathbf{\overset{\rightarrow}{C}} = A\ \times \ \mathbf{\overset{\rightarrow}{B}} , (g) \mathbf{\overset{\rightarrow}{A}} \cdot \mathbf{\overset{\rightarrow}{B}} = \mathbf{\overset{\rightarrow}{A}}\ \times \ \mathbf{\overset{\rightarrow}{B}} , (h) \mathbf{\overset{\rightarrow}{C}} = 2\mathbf{\overset{\rightarrow}{A}} \cdot \mathbf{\overset{\rightarrow}{B}} , (i) C = {\mathbf{\overset{\rightarrow}{A}}\text{/}\mathbf{\overset{\rightarrow}{B}}} , and (j) C = {\mathbf{\overset{\rightarrow}{A}}\text{/}B} .

physics


How do tight and loose monetary policy affect interest rates?

economics


Boric acid, H 3 BO 3 , is not a Brønsted-Lowry acid but a Lewis acid. (Hint: See the equation in [Exercise 15.76](15-exercises#fs-idm105219776) ) (a) Write an equation for its reaction with water. (b) Predict the shape of the anion thus formed. (c) What is the hybridization on the boron, and is it consistent with the shape you have predicted?

chemistry


An electoral system in which seats are awarded based on the percentage of the vote that each party wins is called a __________ system.

political_science


What are the advantages of using a lean model canvas compared to the traditional business model canvas?

business


When equal molar amounts of HCl and HOCl are dissolved separately in equal amounts of water, the solution of HCl freezes at a lower temperature. Which compound has the larger equilibrium constant for acid ionization? (a) HCl (b) H++ Clâ (c) HOCl (d) H++ OClâ

chemistry


Using the Bohr model, determine the energy in joules of the photon produced when an electron in a Li2+ion moves from the orbit withn= 2 to the orbit withn= 1.

chemistry


Describe the observations that convinced astronomers that M87 is an active galaxy.

astronomy


In what sense does Einsteinâs theory of relativity illustrate that physics describes fundamental aspects of our universe?

physics


How does the polar character of water molecules help to explain waterâs relatively large dielectric constant? (Figure 19.18)

physics


Unreasonable Results (a) Find the voltage near a 10.0 cm diameter metal sphere that has 8.00 C of excess positive charge on it. (b) What is unreasonable about this result? (c) Which assumptions are responsible?

physics


List the set of vertices for each component in Graph 13.

mathematics


What is the de Broglie wavelength of a proton whose kinetic energy is 2.0 MeV? 10.0 MeV?

physics


In this distribution, outcomes are equally likely. What does this mean?

mathematics


The moon is3.844Ã108m from Earth. A dollar bill has a thickness of1.0922Ã10â4m. If dollar bills could be stacked perfectly, how many would it take to reach the moon?

mathematics


Referring to [Figure 23.54](23-problems-exercises#import-auto-id1169736838607) (a), what is the direction of the current induced in coil 2: (a) If the current in coil 1 increases? (b) If the current in coil 1 decreases? (c) If the current in coil 1 is constant? Explicitly show how you follow the steps in the [Problem-Solving Strategy for Lenz's Law](23-2-faradays-law-of-induction- lenzs-law) .  Figure 23.54 (a) The coils lie in the same plane. (b) The wire is in the plane of the coil

physics


What is the name of the period in which parents are guiding their children from being dependent on the parents to being independent young adults?

psychology


Convert the temperature of the coldest area in a freezer, â10 Â°F, to degrees Celsius and kelvin.

chemistry


The rate constant for the first-order decomposition at 45 °C of dinitrogen pentoxide, N 2 O 5 , dissolved in chloroform, CHCl 3 , is 6.2 \times 10 −4 min −1 .   \text{2N}_{2}\text{O}_{5}\ \longrightarrow\ \text{4NO}_{2} + \text{O}_{2} What is the rate of the reaction when [N 2 O 5 ] = 0.40 _M_ ?

chemistry


Congress and the courts have interpreted the terms “authors” and “writings” very broadly to include which of the following as eligible for copyright? (Choose all that apply)    A. Graphic works.   B. Novel, non-obvious and useful inventions.   C. Architectural works.

business


f(x) = \text{tan}^{-1}\left( {2x} \right)

mathematics


In a cross between a homozygous red-eyed female fruit fly and a white-eyed male fruit fly, what is the expected outcome?

biology


\left\\{ \begin{array}{l} {x - y > -2} \\\ {y \leq 3x + 1} \end{array} \right.

mathematics


[Table 15.9](15-self-check-questions#ch14mod04_tab11) shows the share of income going to each quintile of the income distribution for the United Kingdom in 1979 and ࠇ. Use this data to calculate what the points on a Lorenz curve would be, and sketch the Lorenz curve. How did inequality in the United Kingdom shift over this time period? How can you see the patterns in the quintiles in the Lorenz curves?  Share of Income | 1979 | 1991   ---|---|---   Top quintile | 39.7% | 42.9%   Fourth quintile | 24.8% | 22.7%   Middle quintile | 17.0% | 16.3%   Second quintile | 11.5% | 11.5%   Bottom quintile | 7.0% | 6.6%   Table 15.9 Income Distribution in the United Kingdom, 1979 and 1991

economics


A factory has a cost of production C(x) = 150x + 15\text{,}000 and a revenue function R(x) = 200x. What is the break-even point?

mathematics


Many of the negative regulator proteins of the cell cycle were discovered in what type of cells?

biology


mathematics


Two fixed particles, each of charge 5.0\ \times \ 10^{-6}\ \text{C}, are 24 cm apart. What force do they exert on a third particle of charge -2.5\ \times \ 10^{-6}\ \text{C} that is 13 cm from each of them?

physics


Without looking at [Table 6.7](6-3-tracking-real-gdp-over-time) , return to [Figure 6.10](6-3-tracking-real-gdp-over-time) . If we define a recession as a significant decline in national output, can you identify any post-1960 recessions in addition to the 2008-2009 recession? (This requires a judgment call.)

economics


The curvature of a circle of radiusrris constant everywhere. Furthermore, the curvature is equal to1/r.1/r.

mathematics


Near the top of the Citigroup Center building in New York City, there is an object with mass of 4.00\ \times \ 10^{5}\ \text{kg} on springs that have adjustable force constants. Its function is to dampen wind-driven oscillations of the building by oscillating at the same frequency as the building is being driven—the driving force is transferred to the object, which oscillates instead of the entire building. (a) What effective force constant should the springs have to make the object oscillate with a period of 2.00 s? (b) What energy is stored in the springs for a 2.00-m displacement from equilibrium?

physics


What factors can explain the relatively small effect of low-skilled immigration on the wages of low-skilled workers?

economics


A copper ring and a wooden ring of the same dimensions are placed in magnetic fields so that there is the same change in magnetic flux through them. Compare the induced electric fields and currents in the rings.

physics


What structure is most important in forming the tetrads?

biology


If a current is 2.0 A, how many turns per centimeter must be wound on a solenoid in order to produce a magnetic field of 2.0\ \times \ 10^{-3}\text{T} within it?

physics


The Arab Spring, Occupy Wall Street protests, and the Tea Party movement have the following in common:

sociology


Calculate the mole fraction of each solute and solvent: (a) 583 g of H2SO4in 1.50 kg of waterâthe acid solution used in an automobile battery (b) 0.86 g of NaCl in 1.00ÃÃ102g of waterâa solution of sodium chloride for intravenous injection (c) 46.85 g of codeine, C18H21NO3, in 125.5 g of ethanol, C2H5OH (d) 25 g of I2in 125 g of ethanol, C2H5OH

chemistry


[LO 5.1](5-1-describe-and-prepare-closing-entries-for-a-business) What is the purpose of the closing entries?

business


(a) Explain how you can use the graph of position versus time inFigure 2.52to describe the change in velocity over time. Identify (b) the time (tata,tbtb,tctc,tdtd, ortete) at which the instantaneous velocity is greatest, (c) the time at which it is zero, and (d) the time at which it is negative. Figure2.52

physics


Find three fractions equivalent to - \frac{4}{3}. Show your work, using figures or algebra.

mathematics


Hiring a worker as an independent contractor saves an employer about 30 percent of the cost of an employee in benefits. Identify one or two of these benefits.

business


The area of region enclosed by one petal ofr=cos(4Î¸).r=cos(4Î¸).

mathematics


Which of the following nuclei is most likely to decay by positron emission? Explain your choice. (a) chromium-53 (b) manganese-51 (c) iron-59

chemistry


How much heat is produced when 1.25 g of chromium metal reacts with oxygen gas under standard conditions?

chemistry


All of the following are characteristics of global cities, _except_ :    A. headquarter multinational corporations   B. exercise significant international political influence   C. host headquarters of international NGOs   D. host influential philosophers

sociology


Explain why magnetic damping might not be effective on an object made of several thin conducting layers separated by insulation.

physics


sociology


Why is it difficult to observe at infrared wavelengths? What do astronomers do to address this difficulty?

astronomy


Our ability to make our legs move as we walk across the room is controlled by the ________ nervous system.

psychology


As an oil well is drilled, each new section of drill pipe supports its own weight and the weight of the pipe and the drill bit beneath it. Calculate the stretch in a new 6.00-m-long steel pipe that supports a 100-kg drill bit and a 3.00-km length of pipe with a linear mass density of 20.0 kg/m. Treat the pipe as a solid cylinder with a 5.00-cm diameter.

physics


The first 50 people who walk into a sporting event are polled on their television preferences.

mathematics


Which of the following could be elements of cytoarchitecture, as related to Brodmannâs microscopic studies of the cerebral cortex?

biology


Functionalist theory sees education as serving the needs of _________.

sociology


Which is an economic policy based on national policies of accumulating silver and gold by controlling markets with colonies and other countries through taxes and customs charges?    A. Capitalism    B. Communism   C. Mercantilism   D. Mutualism

sociology


Radioactivity depends on the nucleus and not the atom or its chemical state. Why, then, is one kilogram of uranium more radioactive than one kilogram of uranium hexafluoride?

physics


How did presidents who served in the decades directly after Washington expand the powers of the presidency?

political_science


Using the information on the steps for an entrepreneurial journey, give your own example with connections to this sectionâs main concepts.

business


An astronaut tightens a bolt on a satellite in orbit. He rotates in a direction opposite to that of the bolt, and the satellite rotates in the same direction as the bolt. Explain why. If a handhold is available on the satellite, can this counter-rotation be prevented? Explain your answer.

physics


What is your relationship to aging and to time? Look back on your own life. How much and in what ways did you change in ten years and in twenty years? Does a decade seem like a long time or a short time in a life span? Now apply some of your ideas to the idea of aging. Do you think older people share similar experiences as they age?

sociology


What is a genetically modified organism (GMO)?

biology


The United States Senator who led the noninterventionists in Congress and called for neutrality legislation in the 1930s was ________. Gerald P. NyeRobert WagnerGeorge C. MarshallNeville Chamberlain

history


In middle childhood experts recommend that youngsters consume no more than ________ hours of television per day.

psychology


In one area of Australia, the cattle did not thrive despite the presence of suitable forage. An investigation showed the cause to be the absence of sufficient cobalt in the soil. Cobalt forms cations in two oxidation states, Co2+and Co3+. Write the electron structure of the two cations.

chemistry


LO9.1A beverage wholesale outlet sells beverages by the case. On April 13, a customer purchased 18 cases of wine at $42 per case, 20 cases of soda at $29 per case, and 45 cases of water at $17 per case. The customer pays with a Merill credit card. Merill charges a usage fee to the company of 5% of the total sale. What is the sales entry for this purchase?

business


Can a single microwave photon cause cell damage? Explain.

physics


An animal whose development is marked by radial cleavage and enterocoely is ________.

biology


From a Keynesian point of view, which is more likely to cause a recession: aggregate demand or aggregate supply, and why?

economics


Explain the advantage that populations of sexually reproducing organisms have over asexually reproducing organisms?

biology


What is the difference between gross profit and net income?

business


What is the cumulative distribution function?

mathematics


Which factor can influence teenagersâ nutritional intake but may not have as strong an influence in other age groups?

nursing


Does the uncharged conductor shown below experience a net electric force?

physics