unique_id stringlengths 2 40 | problem stringlengths 11 5.02k | answer stringlengths 0 159 |
|---|---|---|
1131067 | Write an equation for the simple harmonic motion of a ball on a spring that starts at its lowest point of 6 inches below equilibrium, bounces to it maximum height of 6 inches above equilibrium and returns to its lowest point in a total of 2 seconds. (think about amplitude and period) | 6*sin(πt) |
667568 | Identify the term:
This WBC secretes histamine. | mast cells |
712060 | Which unit, megagrams or grams, would be more suitable for expressing the mass of an automobile? Why? | megagram |
2004481 | Assuming that the gases are ideal, calculate the amount of work done (in joules) in the following reaction. Is work done on or by the system?
A reaction in the Mond process for purifying nickel(0) tetracarbonyl at {eq}50-100 ^{\circ} C
{/eq}.
Assume one mole of nickel is used and a constant temperature of {eq}75 ^{\... | 8684J |
574118 | The problem with attempting to control interest rates while also controlling the exchange rate and maintaining free and open international capital flows is that
A. Capital will flow into those countries that maintain a rate of interest above the global mean rate (risk-adjusted) causing the nation to move off the peg
... | D |
1904374 | If the firm could reduce the average age of its inventory from 73 days, to 63 day, by how much would it reduce its dollar investment in working capital? | 2.74% |
256471 | Suppose in the current year that there is a nation-wide drought for apple growers and a statewide bumper crop for oranges in both Florida and California. Which of the following statements correctly reflects the subsequent developments in the U.S. orange market?
a. Both equilibrium output and price will increase.
b. B... | e |
1388635 | Which one of the following species has the same electron configuration as the Al{eq}^{3+}
{/eq} cation?
A. F
B. Cl
C. S{eq}_2
{/eq}
D. O
E. Mg{eq}^+
{/eq} | F |
731652 | Statements: The national norm is 100 beds per thousand populations but in this state, 150 beds per thousand are available in the hospitals. Conclusions: Our national norm is appropriate. The state's health system is taking adequate care in this regard. Options are: answer A Only conclusion I follows; answer B Only conc... | B |
773326 | Eight months ago, you purchased 400 shares of Winston stock at a price of $46.40 a share. The company pays quarterly dividends of $1.05 a share. Today, you sold all of your shares for $48.30 a share. What is your total percentage return on this investment?
a. 8.62%
b. 12.08%
c. 10.12%
d. 4.09%
e. 7.34% | a |
1984151 | In the case of multiple wage attachments, a garnishment for a student loan has priority over any other garnishment. True or False? | False |
1808790 | A 24.0 kg wombat is moving horizontally at 1.90 m/s when it strikes an empty aluminum can attached to a wall and comes to rest after crumpling the can by 4.00 cm against the wall. What was the average force exerted on the can? | 1080 N |
588488 | If there is s large amount of lactose present, how does bacteria respond?
A the gene for beta-galactosidase turns on.
B the gene for beta-galactosidase turns off.
C beta-galactosidase production increases.
D lactose is produced. | A |
1211937 | After takeoff, an airplane climbs at an angle of 30 degrees at a speed of 215 ft/sec. How long does it take for the airplane to reach an altitude of 13,000 ft? (round your answer to one decimal place.) | 120.9 s |
2028912 | When the following equation is balanced using the smallest possible integers, what is the coefficient in front?
{eq}\displaystyle \rm C_2H_6 + O_2 \to CO_2 + H_2O
{/eq}
(a) 1
(b) 7
(c) 4
(d) 6
(e) 2 | (e) |
1541803 | Slow U.S. economic growth rate impacts the size of the Fed's balance sheet as:
a. The Fed reduces the discount rate to 0%,
b. Banks maintain high levels of excess reserves,
c. Businesses reduce spending, keeping more money in their demand accounts,
d. Individuals move money from checking ti saving accounts. | b |
958236 | It takes a boat 5 hours to travel upstream. It takes the same boat 4 hours to travel the same distance downstream. If the current is 1 mile per hour, what is the speed of the boat in still water? | 9 mph |
69045 | Amanda likes to eat bananas and apples with her lunch between classes. She also keeps a close eye on her spending each week since she is in college and cannot afford the time to work too much. She has budgeted a certain amount of money each week for apples and bananas. If she spends all of this budget on apples, she ca... | 0.6 apples |
1935339 | Which of the following is false?
A. Fixed costs increase in the long run.
B. In the long run, both the amount of capital and labor used by the firm can be changed.
C. Long-run average variable costs equal long-run average total costs.
D. As a firm produces more output, eventually it experiences diseconomies of scal... | C |
928969 | A portable CD player was recently introduced that has a "special power saving technology." The manufacturer claims that with only two standard AA batteries (together: 3.0 V, 20 kJ energy storage), the player can be played for about 25 hours. What is the approximate resistance in the CD player's electrical circuitry? | 39Ω |
1563943 | Which statement best describes the relationship between the pope and the monarchs of Europe during the medieval period?
The monarchs controlled the pope and the bishops.
They kept one another from gaining too much power.
They helped one another maintain power over people.
The pope controlled the flow of money for ... | C |
2073102 | How many siblings did Booker T. Washington have? | 3 |
604267 | In the sentence, "Tim's family took a trip to Paris last September," what is the direct object? | Trip |
1578469 | Evidence from which type of data supports the common origin of all life on Earth? | Genetic Data |
1247821 | An object, after being released from its circular path, travels the distance OA at the same time it would have moved from O to P on the circle. The speed of the object on and off the circle remains constant at the same value. Suppose that the radius of the circle is 3.6 m and the angle is 25C. What is the distance OA? | 1.570 m |
1167276 | A solid 0.3 kg ball rolls smoothly from rest (starting at height H = 6.0 m) until it leaves the horizontal section at the end of the track, at height h = 2.3 m. How far horizontally from end point does the ball hit the floor. | 5.0 m |
818894 | An estimate of the efficiency-loss ratio of taxes on labor income is 15 percent.
The efficiency-loss ratio of taxes on capital income is estimated to be 45 percent.
Assuming that these estimates are accurate, calculate the change in well-being that would result from a $10 billion reduction in taxes on capital income,... | 3 billion |
1172983 | _____ is the movement of water across a membrane.
Select all that apply.
a. Diffusion
b. Facilitated diffusion
c. Osmosis
d. Active transport | c |
1432606 | Which of the following is an example of inductive reasoning?
A. June is the coolest summer month where I live, so it will probably be cool this June.
B. It was cool on the first day of summer, so the entire summer will be cool.
C. I heard on the radio that the first day of summer will be cool, so it will be cool tha... | A |
1126854 | Assume that the uncovered interest parity condition holds. Also assume that the Australian interest rate is greater than the U.K. interest rate. Given this information, we know that investors expect:
a. the pound to appreciate.
b. the Australian interest rate to fall.
c. the pound to depreciate.
d. the Australian d... | a |
1746352 | Define asset turnover | Net Sales / Total Assets |
1323766 | At room temperature, what fraction of the nitrogen molecules in the air are moving at less than 300 m/s? | 0.218 |
1798038 | What is the amount assigned to each share of stock that is printed on the stock certificate called? | par value |
1958878 | An engine rejects energy {eq}1,933\ J
{/eq} to the cold reservoir while performing {eq}731\ J
{/eq} of work. Calculate the engine's efficiency. | 27.44% |
626294 | An investment offers a total return of 12 percent over the coming year. Janet Jello thinks the total real return on this investment will be only 8.8 percent. What does Janet believe the inflation rate will be over the next year? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 dec... | 3.20% |
1838514 | A prankster drops a water balloon from the top of a building on an unsuspecting person on the sidewalk below. If the balloon is travelling 35.4 m/s when it strikes a person's head (1.5 m above the ground), how tall is the building? Neglect air resistance. | 65 m |
5255 | Three identical charges of 3.0 {eq}\mu
{/eq}C are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on an one of the charges?
A) 2.4 N
B) 1.6 N
C) 1.8 N
D) 2.2 N
E) 2.0 N | B |
2100135 | In 1961, two neurosurgeons were able to reduce seizure activity in epileptic patients by severing the corpus callosum. the neurosurgeons were: | Vogel and Bogen |
24720 | A variable force of {eq}x^2 - 2x
{/eq} pounds moves an object along a straight line when it is {eq}x
{/eq} feet from the origin. Determine the work {eq}W
{/eq} done in moving the object from {eq}x = 2
{/eq} to {eq}x = 3
{/eq} feet. | 4/3 ft⋅lb |
2059639 | Karl is going to visit the local community mental health center. He is most likely to see a:
a. pastoral counselor
b. psychoanalyst
c. psychiatrist
d. clinical psychologist | c |
546798 | Drug side effects are endless and can vary depending on the ____________. | Individuals |
1449529 | Why are some producers forced to sell their products at the prevailing market price?
a) Price takers find market analysis is too costly.
b) They can increase output without affecting quality.
c) High degree of similarity to competitors products.
d) They are very small players in the overall market | d |
1848114 | A 4.6-kg block slides down an inclined plane that makes an angle of 26 with the horizontal. Starting from rest, the block slides a distance of 2.6 m in 4.9 s. Find the coefficient of kinetic friction between the block and plane. | 0.46 |
2029325 | The balance sheet caption for common stock is as follows. What accounts for the difference between issued shares and outstanding shares?
Common stock, $10 par value 7,000,000 shares authorized
5,700,000shares issued
5,500,000 shares outstanding | Treasury shares |
647618 | Silver nitrate and calcium chloride solutions produce a heavy, white precipitate when mixed. Chemical analysis indicates that the precipitate is silver chloride. What mass of silver chloride would be produced if 95 mL of 6.0 M silver nitrate is mixed with 40 mL of 6.0 M calcium chloride? | 68.79 grams |
354825 | JB Chemical currently discharges liquid waste into Calgary's municipal sewer system. However, the Calgary municipal government has informed JB that a surcharge of $4 per thousand cubit liters will soon be imposed for the discharge of this waste. This has prompted management to evaluate the desirability of treating its ... | 25.77% |
523259 | Which system has the least amount of government involvement in the economy? | Capitalism |
1663467 | In an efficient market, deadweight loss is
a. maximum.
b. minimum.
c. constant.
d. zero. | d |
1865023 | who revised Wegener's theory by adding the convection currents under the Earth as the cause for the movement? | Arthur Holmes |
380560 | The gauge pressure in a helium gas is initially 33 atm. After many balloons have been blown up, the gauge pressure has reduced to 6 atm. What fraction of the original amount of helium remains in the cylinder? Assume that the temperature of the gas is constant. (Express your answer using two significant figures.) | 0.18 |
898572 | Sam contributes property with a basis of $10,000 and a fair market value of $20,000 to a partnership in return for a partnership interest and $10,000. Sam will recognize $10,000 on the transfer. True/False? | False |
1267508 | Did Susan B. Anthony write a book? | Yes |
534736 | There is a bicycle wheel resting against a small step whose height {eq}h = 0.132
{/eq} m. The weight and radius of the wheel are {eq}W = 27.3
{/eq} N and {eq}r = 0.324
{/eq} m, respectively. A horizontal force is applied to the axle of the wheel. As the magnitude of increases, there comes a time when the wheel just ... | 37.10 N |
44087 | You've borrowed $15,000 on margin to buy shares in Disney, which is now selling at $50 per share. Your account starts at the initial margin requirement of 50%. The maintenance margin is 47%. Two days later, the stock price falls to $48 per share.
How low can the price of Disney shares fall before you receive a margin ... | $47.17 |
501297 | How does the pH of soil change? | By acidic rain or liming |
1364965 | Your firm is considering purchasing a machine with the following annual, end-of-year, book investment accounts.
Purchase Date Year 1 Year 2 Year 3 Year 4
Gross investment $55,000 $55,000 $55,000 $55,000 $55,000
Less: Accumulated depreciation 0 13,750 27,500 41,250 55,000
Net investment $55,000 $4... | 19.27% |
391471 | Is it true that fiscal stimulus cannot help but be effective in the absence of capacity constraints in the economy, whereas monetary policy is not always effective at creating growth? | Yes |
1575704 | Assume the following information for the month of August.
June sales=$40,000; July sales= $65,000; August sales= $52,850. All sales are on account and are collected as follows: 20% in the current month, 50% in the month following, 25% in the second-month following, and 5% uncollectible. The beginning cash balance is $... | $7,023 |
1536455 | A physics professor is pushed up a ramp inclined upward at an angle of 28.0 degrees above the horizontal as he sits in his desk chair that slides on frictionless rollers. The combined mass of the professor and chair is 82.0 kg. He is pushed a distance of 2.00 m along the incline by a group of students who together exer... | 3.22 m/s |
2022267 | A light spring of natural (equilibrium) length 10cm with force constant k=500 N/m is embedded vertically in the ground. A ball of mass m = 0.15 kg is placed on top of the spring, which is compressed 8.0cm; when released, the spring pushes the ball. When the ball reaches ground level, it leaves its light supporting plat... | 1.088 m |
570405 | 15. After falling from rest from a height of 30 m, a 0.50-kg ball rebounds upward, reaching a height of 20 m. If the contact between ball and ground lasted 2.0 ms, what average force was exerted on the ball? | 11 kN |
1069690 | Faraday's law of electromagnetic induction helps determine:
a. The direction of induced currents and EMFs
b. The magnitude of induced EMFs and currents
c. The direction and magnitude of induced EMFs only
d. The direction and magnitude of induced currents only | b |
1979226 | Rutherford bombarded nitrogen gas with alpha particles, causing some of the nitrogen to change into oxygen by a process of | artificial transmutation |
1294175 | Dave's Dogs is a firm that originally sold hot dogs and soft drinks from a cart located in front of City Hall. Then Dave purchased another hot dog cart and hired someone to sell hot dogs and soft drinks near the high school. Both locations have been successful. When Dave's Dogs expanded to two locations, which of the f... | A |
1920586 | You have invested equally in the following four security portfolio, market portfolio, risk free asset, a stock with a beta of 1.7, and a bond with a beta of 0.6.
What is the beta of your portfolio?
(Show your answer to 2 decimal places (e.g., 1.23).) | 0.83 |
1021517 | Nachman Industries just paid a dividend of D0 = $1.32. Analysts expect the company's dividend to grow by 30% this year, by 10% in Year 2, and at a constant rate of 5% in year 3 and thereafter. The required return on this low-risk stock is 9%. What is the best estimate of the stock's current market value? | $44.85 |
1221958 | What does PEC stand for in special education? | Picture Exchange Communication |
1208198 | In 1967, tuition, room & board at a private college costs $3000. In 2007, the same services cost $48,000. Find the average annual rate of college-cost inflation, using the Rule of 72. Hint: first, estimate the number of doubles. Since each double represents 72 compounding percents, you can then find the total number of... | 7.2% per year |
243937 | An object is at rest at #(8 ,3 ,8 )# and constantly accelerates at a rate of #7/4 m/s^2# as it moves to point B. If point B is at #(6 ,3 ,4 )#, how long will it take for the object to reach point B? Assume that all coordinates are in meters. | 2.26s |
664138 | The economy is experiencing substantial unemployment. If policy does not change, then we would expect to see what level of inflation and what level of unemployment in the long run?
a. higher; higher
b. lower; lower
c. higher; lower
d. lower; higher | d |
504926 | Convert the following measurement: 0.017 g/L = _____ mg/dL | 1.7 mg/dL |
361275 | Two chemical, A and B, are combined, forming chemical C. The rate of the reaction is jointly proportional to the amount of Aand B not yet converted to C. Initially there are 200 grams of A and 300 grams of Band, during the reaction, for each gram of A used up in the conversion, there are three gram of B used up. An exp... | a |
581248 | Which third-party intervention is commonly used in national emergency disputes?
A) fact-finding
B) mediation
C) binding arbitration
D) nonbinding arbitration | A |
598796 | Year-to-date, Oracle had earned a 1.40 percent return. During the same time period, Valero Energy earned 7.68 percent and McDonald's earned 0.44 percent. If you have a portfolio made up of 20 percent Oracle, 30 percent Valero Energy, and 50 percent McDonald's, what is your portfolio return? (Round answer to 2 decimal p... | 2.80% |
452228 | How many people were injured in the Newark Riots? | 727 |
2092406 | How are Saturn and Jupiter alike?
They both have rock surfaces.
They both rotate very slowly.
They both have rings.
They both have very low densities. | C |
2032316 | What branch of psychology studies abnormal behavior? | Abnormal Psychology |
769455 | Select the list that has the steps of the closing process in the right order. a. Do final walk-through Purchase homeowners insurance Sign closing documents b. Apply for mortgage Apply for mortgage Do final walk-through Sign closing documents Purchase homeowners insurance 3. Apply for mortgage Purchase homeowners insura... | C |
717867 | The maximum applied force of compression that one man's thighbone can endure without breaking is {eq}7.6 \times 10^4\, N
{/eq}. The minimum effective cross-sectional area of the bone is {eq}3 \times 10^{-4}\, m^2
{/eq}, its length is {eq}0.54\, m
{/eq}, and Young's modulus is {eq}Y = 9.4 \times 10^9\, N/m^2
{/eq... | 0.91 m |
1913390 | External events include all of the following except:
a. Paying employees' salaries.
b. Purchasing equipment.
c. Using office supplies.
d. Collecting an account receivable. | c |
1278377 | How do you calculate the energy needed to heat water? | q = cmΔT |
1871058 | What plant cell structures capture sunlight to produce sugars? | Chloroplasts |
1363989 | What part of speech is really? | adverb |
1088702 | You are considering buying 100 shares of WalMart stock. In any given week, the stock can either increase in value by 3.8% or decrease in value by 2.2%. The probability that the stock increases is 0.63; otherwise, the stock decreases in price. How the stock performs in any given week is independent of how it has perform... | 0.0158 |
348170 | Seller X sells her good for $40. The price index is currently 140. If the price of Seller X's good rises to $50 and the price index rises by the same percentage, according to the producer misperception explanation of the upward-sloping SRAS curve, what would the seller think of the relative price of her good?
A) It ha... | A |
1338385 | Which of the following always correspond(s) to a fall in the short run output?
a) The AS shifts right.
b) The resulting price level falls.
c) The AD shifts up.
d) None of the answers is correct. | b |
1108319 | Which of the below substances will have the least entropy associated with it, in its current state of matter and temperature?
a. Substance 1: Ne (g) Temperature of 284 K
b. Substance 2: H2O (l) Temperature of 306 K
c. Substance 3: Hg (g) Temperature of 307 K
d. Substance 4: He (g) Temperature of 279 K | b |
126858 | Morality is best defined as _____.
a. society's responsibility toward a person
b. a person's responsibility toward society
c. the rules or principles that define right and wrong conduct
d. the goodness or badness of human action or behavior | c |
614806 | What is the theoretical yield in grams of NaCl given the following information?
1) 24.94mL of HCl
2) 24.80mL of NaOH
Concentration of HCl is 1.093 M
Concentration of NaOH is .9138 M | 1.32 g |
613660 | Bayou Okra Farms just paid a dividend of $2.65 on its stock. The growth rate in dividends is expected to be constant 4.5 percent per year indefinitely. Investors require a return of 15 percent for the first three years, a return of 13 percent for the next three years, and a return of 11 percent thereafter. What is the ... | $40.73 |
720766 | Moore Corporation uses the balance sheet approach for recording uncollectible. An aging schedule reveals an estimated $12,750 of uncollectible. Allowance for Doubtful Accounts has a credit balance of $3,700 before adjustment.
What is the ending balance of Allowance for Doubtful Accounts after adjustment?
A. $16,450
... | A |
1829422 | A certain ionic compound is found to contain .012 mol of sodium, .012 mol of sulfur, and .018 mol of oxygen. What is its empirical formula? | Na2S2O3 |
36002 | A 50 g bullet traveling with an initial velocity of 400 m/s penetrates into a wall with an average force of 4 {eq}\times
{/eq} 10{eq}^4
{/eq} N. It goes out of the wall with a velocity of 50 m/s. What is the thickness of the wall? | 9.84 cm |
52243 | Technician A says that all components in the high voltage battery box are completely insulated from the rest of the vehicle for safety. Technician B says that the high voltage battery box is located under the hood in some vehicles. Which technician is correct? | Technician A |
1079415 | Consider a country that has been producing a lot of oil and suppose that from one year to the next, its oil wells run out. The country will be poorer than previously. According to the two definitions above, is it in a recession? | Yes |
708841 | Would a rug have static or dynamic friction? | static friction |
1400548 | In the goods market,
a) Inflation uniquely determines the equilibrium level of employment.
b) Wage bargaining is central to our understanding of equilibrium.
c) The working age population that is employed is irrelevant.
d) The higher the interest rate the lower the equilibrium level of output. | d |
2051341 | In our calculation of cash flow from assets, we need to consider the balance(s) of:
A. inventory
B. none of them is included
C. accounts payable
D. sales
E. all are included | E |
678964 | Using a 0.20 M acetate buffer with a pH of 4.7, you add 0.79 mL of 0.12 M HCl to 75 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant figures.) | 4.69 |
594924 | Women were banned from performing Kabuki dance in 1629 because many of the performers came from the "pleasure quarters" where prostitution was a way of life and public morality was considered to be at risk. So men took over and played all the parts. | True |
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