In an experiment reported in the scientific literature, male cockroaches were made to run at different speeds on a miniature treadmill while their oxygen consumption was measured. In one hour the average cockroach running at 0.08km/hr consumed 0.8 mL of O2 at 1 atm pressure and 24 ?C per gram of insect weight.
a)
How many moles of O2 would be consumed in 1 hr by a 5.4?g cockroach moving at this speed?
b)
This same cockroach is caught by a child and placed in a 1-qt fruit jar with a tight lid. Assuming the same level of continuous activity as in the research, will the cockroach consume more than 20% of the available O2 in a 48-hr period? (Air is 21 mol percent O2)
In: Chemistry
Consider the two (excess return) index-model regression results for stocks A and B. The risk-free rate over the period was 5%, and the market’s average return was 14%. Performance is measured using an index model regression on excess returns.
| Stock A | Stock B | ||||||||||
| Index model regression estimates | 1% + 1.2(rM − rf) | 2% + 0.8(rM − rf) | |||||||||
| R-square | 0.611 | 0.454 | |||||||||
| Residual standard deviation, σ(e) | 10.9% | 19.7% | |||||||||
| Standard deviation of excess returns | 22.2% | 26.1% | |||||||||
a. Calculate the following statistics for each stock: (Round your answers to 4 decimal places.)
Stock A & Stock B
i.Alpha
ii.Information ratio
iii.Sharpe ratio
iv.Treynor measure
In: Finance
Company Q’s current return on equity (ROE) is 14%. It pays out
one half of earnings as cash dividends (payout ratio = 0.5).
Current book value per share is $50. Book value per share will grow
as Q reinvests earnings.
Assume that the ROE and payout ratio stay constant for the next
four years. After that, competition forces ROE down to 11.5% and
the payout ratio increases to 0.8. The cost of capital is
11.5%.
a. What are Q’s EPS and dividends in years 1, 2,
3, 4, and 5? (Do not round intermediate calculations. Round
your answers to 2 decimal places.)
b. What is Q’s stock worth per share?
In: Finance
In: Finance
Given an ideal steam regenerative cycle in which steam enters the turbine at 3.0 MPa, 400 oC, and exhausts to the condenser at 10 kPa. Steam is extracted from the turbine at 0.8 MPa for an open feedwater heater. The feedwater leaves the heater as saturated liquid. The net power is 45 MW. Assume any missing data. Draw a neat sketch for the cycle flow diagram showing all states
. Draw the T-s diagram.
Calculate the thermal efficiency of the cycle.
Calculate the steam mass flow rate (in kg/s).
Calculate the total power to the two pumps.
Calculate the mass flow rate of the cooling water in the condenser if its temperature rise is 9 oC.
In: Mechanical Engineering
Consider the two (excess return) index-model regression results for stocks A and B. The risk-free rate over the period was 8%, and the market’s average return was 12%. Performance is measured using an index model regression on excess returns.
| Stock A | Stock B | ||||||||||
| Index model regression estimates | 1% + 1.2(rM − rf) | 2% + 0.8(rM − rf) | |||||||||
| R-square | 0.653 | 0.475 | |||||||||
| Residual standard deviation, σ(e) | 11.6% | 20.4% | |||||||||
| Standard deviation of excess returns | 22.9% | 27.5% | |||||||||
a. Calculate the following statistics for each stock: (Round your answers to 4 decimal places.)
Sharpe ratio: Stock A = Stock B =
Treynor Measure: Stock A = Stock B =
In: Finance
Problem 3.1: Reliability. Suppose that I have the following three-step system, with the listed reliabilities:
Step 1: .60 Step 2: .90 Step 3: .80
1a) I have to run the system two times in a row, and all steps must work both times. What is its reliability?
1b) Suppose that I have the following two upgrades in mind:
Option A: The system will still work as long as it is reliable at least one of the two times.
Option B: The system must still work both times, but I’ve added a backup to Step 3 that also has reliability of 0.8.
Assume that cost is not a factor: which gives me better reliability?
In: Operations Management
(a) A gas phase reaction, ? → ? is carried out in a packed bed reactor (ID = 0.8 m) containing Al2O3 catalyst. The catalysts were of spherical shape with a diameter of 6 mm. The reactant A was diluted with inert (70% inert) and fed to the reactor at 10 atm and 200 °C. The volumetric flow rate was varied from 5 - 15 m3 /s. It was assumed that the surface reaction and the external mass transfer influenced the overall conversion in the reactor. Compare the amount of the catalyst required to achieve 50% conversion under different flow rates.
(b) Estimate the weight of the catalyst to achieve 50% conversion when the reaction was carried out at 400 °C for the feed flow rate of 5 m3 /s.
In: Other
Please provide a step by step solution
Key the names in indexing order using the ARMA rules. In the upper right corner of each card, key the corresponding number for each name
In: Operations Management
1) Donald rents out his vacation home for nine months and lives in his vacation home for the remainder of the year. His gross rental income for 2017 is $7,200. The expenses attributable to the vacation home for the entire year are as follows:
Real estate taxes $2,000
INterest on mortgage loan 4,000
Utilities 1,200
Repairs/maintenance 600
Depreciation 3,500
What amount would Donald report as net income or loss from the rental of the vacation home?
2) Wilson and Joan, both in their 30s, file a joint income tax return for 2017. Wilson's wages are $15,000 and Joan's wages are $23,000 for the year. Their total adjusted gross income is $38,000, and Joan is covered by a qualified pension plan at work but Wilson is not.
a) What is the maximum amount that Wilson and Joan may each deduct for contributions to thier individual retirement accounts?
Wilson $
Joan $
b) If Joan's wages are $82,000 for 2017, instead of $23,000, and thier adjusted gross income is $97,000, what is the maximum amount that Wilson and Joan may each deduct for contributions to thier individual retirement accounts?
Wilson $
Joan $
3) Hope srpings, a teacher, loaned Hugh Owens, a friend, $20,000 to invest in real estate. Hugh declared bankruptcy in 2017 and cannot repay the $20,000
a) What is the nature of Hope's loss? ( what does it called ?)
b) Assuming Hope has no other captial transactions, is there a limit on the amount she may deduct for 2017?
Explain
4) Dennis, the owner of Dennis Company, incurs the following expenses while away from home on a three-week business trip during 2017:
Air fare from Chicago to Boston $800
Hotel charges 2,200
Meal charges 880
Dry cleaning and laundry 100
Local transportation 55
Business entertainment 250
Business gift to Boston manager 55
in addition to the above expenses, Dennis incurred the following expenses for a weekend sightseeing trip to Washington D.C.:
Transportation to Washington DC $350
Hotel charges 225
Meal charges 105
Calcuate the amount Dennis may deduct for 2017 as travel expenses for the trip
In: Accounting