A small city requires about 10 MW of power. Suppose that instead of using high-voltage lines to supply the power, the power is delivered at 120 V.
Assuming a two-wire line of 0.48?cm -diameter copper wire, estimate the cost of the energy lost to heat per hour per meter. Assume the cost of electricity is about 10 cents per kWh.
In: Physics
The target value for a watch is to lose no time over a year. A sample of 4 watches had the following time gained (lost) in minutes: (-1, -2, 3, -3). Assume k = $4. Calculate the following:
Round your answers to two decimal places.
Average squared deviation:
Average loss per watch:
Total expected loss for 8,000 watches produced and sold: $
In: Statistics and Probability
A railroad car of mass 3.10 ✕ 10^4 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s.
(a) What is the speed of the three coupled cars after the collision?
__m/s
(b) How much kinetic energy is lost in the collision?
__J
In: Physics
In: Computer Science
Anova 7. A large marketing firm uses many photocopying machines, several of each of four different models. During the last six months, the office manager has tabulated for each machine the average number of minutes per week that it is out of service due to repairs, resulting in the following data: Model G: 56 61 68 42 82 Model H: 74 77 92 63 54 Model K: 25 36 29 56 44 Model M: 78 105 89 112 61 Perform an analysis of variance to decide whether the difference among the means of the four samples can be attributed to chance.
State the null and alternative hypothesis
Give the p-value
Give a conclusion for the hypothesis test.
In: Statistics and Probability
You are going to value Lauryn’s Doll Co. using the FCF model. After consulting various sources, you find that Lauryn's has a reported equity beta of 1.4, a debt-to-equity ratio of .7, and a tax rate of 21 percent. Assume a risk-free rate of 4 percent and a market risk premium of 11 percent. Lauryn’s Doll Co. had EBIT last year of $44 million, which is net of a depreciation expense of $4.4 million. In addition, Lauryn's made $5.25 million in capital expenditures and increased net working capital by $3.3 million. Assume the FCF is expected to grow at a rate of 3 percent into perpetuity. What is the value of the firm? (Do not round intermediate calculations. Enter your answer in millions rounded to 2 decimal places.)
Firm Value:
In: Finance
Translate the following real world scenario into a signal. Write mathematically. An IV drip is started on a patient of 1000mL saline over 8 hours. At time zero, a linearly increasing drip rate is started for 2 hours. The drip rate is then held constant for 4 hours. The last two hours the drip rate is linearly decreased to zero. Write an analytical expression of the signal in mL/hour.
This is for a signals and systems class. Some basic functions that could be used are u(t) and the delta function.
In: Electrical Engineering
8. Your friend is currently excited about Walmart's stock, believing that given current conditions, Walmart will continue to outperform. Your friend has looked at the P/E ratio, the change in Walmart's market capitalization over the last two years, and has calculated the debt to equity ratio. With the results of these three calculations, your friend is confident that Walmart stock is a strong buy. Is this simple ratio analysis adequate to support this decision? Should your friend consider anything else?
In: Finance
Bergman Corp. has experienced zero growth over the last seven years, paying an annual dividend of $2.00 per share. Investors generally expect this performance to continue. Bergman stock is currently selling for $24.39. The risk-free rate is 3.0%, and Bergman's beta is 1.3.
a. Calculate the return investors require on Bergman's stock
b. Calculate the market return
c. Suppose you think Bergman is about to announce plans to grow at 3.0% into the foreseeable future. You also believe investors will accept that prediction and continue to require the same return on its stock. How much should you be willing to pay for a share of Bergman's stock?
In: Finance
Remember to use the format CPT-4 code-modifier; when a modifier applies to the scenario. (No spaces)
example: 27510-RT
If more than one code is needed, please leave one space only between codes: example :
xxxxx xxxxx
1. 55 year old female with fibromyalgia underwent an injection to four trigger points with ultrasonic guidance. Two injections on the trapezius muscle, one more to the deltoid and the last one on the biceps.
(do not forget to add an additional code for the radiological guidance, this code should be listed after the procedure code)
In: Nursing