Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater than 1,000 m/s2 lasting for at least 1 ms will cause injury. Suppose a small child rolls off a bed that is 0.61 m above the floor. If the floor is hardwood, the child's head is brought to rest in approximately 2.3 mm. If the floor is carpeted, this stopping distance is increased to about 1.2 cm. Calculate the magnitude and duration of the deceleration in both cases, to determine the risk of injury. Assume the child remains horizontal during the fall to the floor. Note that a more complicated fall could result in a head velocity greater or less than the speed you calculate.
| hardwood floor magnitude | m/s2 |
| hardwood floor duration | ms |
| carpeted floor magnitude | m/s2 |
| carpeted floor duration | m |
In: Physics
Problems with IRR
White Rock Services Inc. has an opportunity to make an investment with the following projected cash flows.
|
Year |
Cash Flow |
|
0 |
$1,690,000 |
|
1 |
−3,886,000 |
|
2 |
2,225,021 |
a. Calculate the NPV at the following discount rates and plot an NPV profile for this investment:
0%,
5%,
7.5%,
10%,
15%,
20%,
22.5%,
25%,
30%.
b. What does the NPV profile tell you about this investment's IRR?
c. If the company follows the IRR decision rule and their cost of capital is
15%,
should they accept or reject the opportunity? Why is it hard to make a decision on this investment based solely on the IRR rule?
d. If the company's cost of capital is
15%,
should they reject or accept the investment based on its NPV?
In: Finance
Discuss the three main areas of concern in corporate finance.
In: Finance
Bourgeois states that it might be true that an artist has “something in them that either refuses or is unable to grow up.” What do you think she means by this?
What are the sorts of ideas she is dealing with here: politically, morally, poetically and/or psychologically? What is her message? Is she successful in getting her ideas across?
In: Psychology
Research and find an example of the police ‘code of silence’ influencing a case or situation. How do you feel the supposed ‘code of silence’ influences public opinion of police officers? Conversely, can such loyalty be beneficial or even necessary in police work? If so, how?
In: Psychology
16. Which of the following is true regarding the sensitivity of the Free Cash Flow valuation model to errors? a. The future terminal (continuation) cash flow is extremely sensitive to forecasting and growth rate errors. b. All else being equal, a terminal (continuation) value computed 10 years from today with a 3% overstatement in the growth rate will bias the intrinsic valuation more than if the terminal (continuation) value computation were made in 6 years with a 3% overstatement in growth. c. Financial statements after the year 2002 provide less accurate information regarding the market value of debt than financial statements prepared in the late 1980’s. d. Cash flow based statements provide more forward looking information than do accrual based statements and valuation methods. e. Free Cash Flow valuations are riddled with errors and do a poorer job of explaining and forecasting stock prices that the Discounted Dividends model.
In: Finance
Question-Directions-Translate each of the following arguments into quantified form and prove that each is valid using natural deduction.
If all store supervisors are wise, then some employees benefit. If there are some store supervisors who are not wise, then some employees benefit. As you can see, either way, some employees benefit. (S, W, E, B)
In: Psychology
Instructions:
In: Operations Management
Please answers the below essay questions to the best of your ability in no more than 4-6 sentences.
- What are Kirkpatrick’s four levels of training evaluation? Give an example of how each could be measured?
In: Operations Management
Consider the following problem
Maximize Z=2x1 + 5x2 + x3
subject to
4x1+ 2x2 + x3 ≤ 6
x1 + x2 ≤ 2
xi ³ 0 for i=1,2,3
a. Inserting slack variables, construct the initial simplex tableau. What is the initial basic feasible solution?
b. What is the next non-basic variable to enter the basis
c. Using the minimum ratio rule, identify the basic variable to leave the basis.
d. Using elementary row operations, find the next basic feasible solution.
In: Operations Management
which area of concern in corporate finance is the most difficult to address
In: Finance
In: Biology
(A) Discuss why in any tree we have |V|=|E|+1? (B) Provide a definition for complete binary trees. (C) What is the maximum number of vertices in depth d a complete ternary tree? Explain your response (Hint 1: a ternary tree is a tree in which each node can have at most 3 children. Hint 2: Depth of a tree starts from 0. That means root is in depth 0).
In: Computer Science
(Accounts receivable collection policy) The Cowboy Bottling Company will generate $16 million in credit sales next year. Collection of these credit sales will occur evenly over this period. The firm's employees work 300 days a year. Currently, the firm's processing system ties up 6 days' worth of remittance checks. A recent report from a financial consultant indicated procedures that will enable Cowboy Bottling to reduce processing float by 1 full days. If Cowboy invests the released funds to earn 11 percent, what will be the annual savings?
The annual savings on the new processing system will be $
In: Finance
A statistics practitioner took a random sample of 55 observations from a population whose standard deviation is 35 and computed the sample mean to be 101.
Note: For each confidence interval, enter your answer in the form (Lower limit, Upper limit). You must include the parentheses and the comma between the confidence limits.
A. Estimate the population mean with 95% confidence.
Confidence Interval =
B. Estimate the population mean with 90% confidence.
Confidence Interval =
C. Estimate the population mean with 99% confidence.
Confidence Interval =
In: Math