Top width - 12 m
R.L of top of dam - + 215 m
R.L of bottom of dam - + 104 m
FRL - + 212 m
No tail water
Upstream face is vertical
Downstream face is vertical till a R.L of + 205 m, after which it has a slope of 0.7 H:1 V up to the base
Drain holes are located at a distance of 7 m from the heel
Unit weight of dam material as 24 kN/m2
Calculate the forces acting and moment about the toe due to self weight and uplift indicating their nature. Indicate the line of action of the forces on the figure
In: Civil Engineering
suppose the demand and supply curves for sparkling cider are given by:QD = 110 – 20PQS = -32 + 13Pwhere QD is the quantity of sparkling cider demanded (in thousands of bottles), QS is the quantity supplied, and P is the price of sparkling cider (in dollars per bottle).
a.Find the equilibrium price and quantity of sparkling cider. Round P to the nearest cent (hundredth) and Q to the nearest whole number.
b.If price is set at $4 per bottle, will there be a surplus or a shortage? How large?
c.Suppose the market for sparkling cider is perfectly competitive. If a firm in this market has a marginal cost MC = 0.7 + 0.2q, how many bottles will this firm produce at the market equilibrium price?
In: Economics
It has been claimed that an insect called the froghopper (Philaenus spumarius) is the best jumper in the animal kingdom. This insect can accelerate at 4,000 m/s2 over a distance of 2.0 mm as it straightens its specially designed "jumping legs." Assuming a uniform acceleration, answer the following.
(a) What is the velocity of the insect after it has accelerated through this short distance? (Enter the magnitude of the velocity.) m/s
(b) How long did it take to reach that velocity? ms
(c) How high would the insect jump if air resistance could be ignored? Note that the actual height obtained is about 0.7 m, so air resistance is important here. m
In: Physics
An industrial plant discharges water into a river. An environmental protection agency has studied the discharged water and found the lead concentration in the water (in micrograms per litre) has a normal distribution with population standard deviation σ = 0.7 μg/l. The industrial plant claims that the mean value of the lead concentration is 2.0 μg/l. However, the environmental protection agency took 10 water samples and found that the mean is 2.56 μg/l. A hypothesis test is carried out to determine whether the lead concentration population mean is higher than the industrial plant claims. (Use 1% level of significance). An appropriate test for this one population hypothesis problem is to use the _______.
In: Math
XYZ Corp. will pay a $2 per share dividend in two months. Its stock price currently is $64 per share. A call option on XYZ has an exercise price of $58 and 3-month time to expiration. The risk-free interest rate is 0.7% per month, and the stock’s volatility (standard deviation) = 8% per month. Find the Black-Scholes value of the American call option. (Hint: Try defining one “period” as a month, rather than as a year, and think about the net-of-dividend value of each share.) (Round your answer to 2 decimal places.) Ps: The answers to this question already on chegg are incorrect.
In: Finance
Understanding risks that affect projects and the impact of risk consideration
WSP Inc. is involved in a wide range of unrelated projects. The company will pursue any project that it thinks will create value for its stockholders. Consequently, the risk level of the company’s projects tends to vary a great deal from project to project.
If WSP Inc. does not risk-adjust its discount rate for specific projects properly, which of the following is likely to occur over time? Check all that apply.
The firm will accept too many relatively risky projects.
The firm will become less valuable.
The firm will accept too many relatively safe projects.
Generally, a positive correlation exists between a project’s returns and the returns on the firm’s other assets. If this correlation is _______, stand-alone risk will be a good proxy for within-firm risk.
Consider the case of another company. Kim Printing is evaluating two mutually exclusive projects. They both require a $3 million investment today and have expected NPVs of $600,000. Management conducted a full risk analysis of these two projects, and the results are shown below.
|
Risk Measure |
Project A |
Project B |
|---|---|---|
| Standard deviation of project’s expected NPVs | $240,000 | $360,000 |
| Project beta | 0.9 | 0.7 |
| Correlation coefficient of project cash flows (relative to the firm’s existing projects) | 0.7 | 0.5 |
Which of the following statements about these projects’ risk is correct? Check all that apply.
Project A has more corporate risk than Project B.
Project B has more corporate risk than Project A.
Project A has more market risk than Project B.
Project B has more stand-alone risk than Project A.
In: Finance
Some researchers tested whether arthritis in dogs could be improved by supplementation with antioxidants and/or an aminosugar mixture (containing glucosamine and chondroitin). They gave combinations of these supplements (each a factor with two levels: treatment and control) to equal numbers of test subjects in a balanced factorial design. They tested the effects of these supplements on levels of inflammation using a factorial ANOVA. The ANOVA table from their output is copied below.
> model<-aov(inflammation~as.factor(antioxidant)*as.factor(aminosugar))
> anova(model)
|
Df |
SS |
MS |
F |
P |
|
|
antioxidant |
1 |
385 |
385 |
17.5 |
0.0007 |
|
aminosugar |
1 |
0.7 |
0.7 |
0.032 |
0.8581 |
|
antioxidant:aminosugar |
1 |
1.3 |
1.3 |
0.059 |
0.7863 |
|
Residual |
16 |
352 |
22 |
a) How many hypotheses did they test with this model?
b) How many test subjects (i.e. replicates) did the researchers have?
c) Did the order in which antioxidant and aminosugar effects entered this model affect their significance? Why?
d) Name a measure of model fit that can be used to compare the relative fit of different models, while taking into account the number of parameters in each?
e) The researchers simplified their model by removing the interaction term and the main effect of aminosugar. Fill in the table below with the values of their new model.
> model2<-aov(inflammation~as.factor(antioxidant))
> ANOVA(model)
|
Df |
SS |
MS |
F |
|
|
antioxidant |
||||
|
Residual |
f) Did the significance of antioxidant change by removing the other terms, and if so, did it become more or less significant?
g) By how much did the overall model R2 change (explain whether it increased, decreased or no change, as well as the amount)? (show your working)
In: Math
The Clearwater National Bank is planning to set up a new branch. This new branch is anticipated to generate 5 percent of the total business of the bank after it is opened. The bank also expects the return for this branch to be 15 percent with a standard deviation of 5 percent. Currently the bank has a 10 percent rate of return with a standard deviation of 5 percent. The correlation between the bank's current return and returns on the new branch is expected to be -0.3. What is this bank's expected risk (measured by the standard deviation) after adding this branch?
*please provide work
In: Finance
Selected financial information gathered from the Matador Corporation follows:
|
Year 3 |
Year 2 |
Year 1 |
|
|
Average assets |
$1,007,000 |
$1,094,000 |
$1,184,000 |
|
Average equity |
$215,000 |
$294,000 |
$364,000 |
|
Return on assets |
5.9% |
6.6% |
7.2% |
|
Quick ratio |
0.3 |
0.5 |
0.6 |
|
Sales |
$1,650,000 |
$1,452,000 |
$1,304,000 |
|
Cost of goods sold |
$1,345,000 |
$1,176,000 |
$1,043,000 |
Using only the data presented, which of the following statements is most correct?
A. Leverage has declined.
B. Return on equity has improved.
C. Gross profit margin has improved.
In: Accounting
A project manager is trying to ascertain a discounting rate for the project cash flows that carry the same risk as the core business of the firm. The manager has been told by the finance team at the firm that the current capital structure has a debt to value ratio of 0.3, however, they are targeting a ratio of 0.25 to get a better credit rating. The better credit rating would reduce the cost of debt to 7%. The current return on the firm’s equity is 15% and the current cost of debt is 8%. What is an appropriate discount rate for the project cash flows if the tax rate is 25%?
In: Finance