A 50 Hz, four-pole, 480 V, three-phase, wye-connected induction machine
has the following parameters:
R1 = 0.2 R2 = 0.3 Xeq = 12
The motor is loaded by a unidirectional constant-torque load of 40 NM. A
countercurrent braking is performed on the motor. Calculate the following:
a. Motor current before the countercurrent braking
b. Motor current just after the voltage sequence is reversed
C. Current at the moment when the motor stops
d. Moter torque at the condition of part ( b) and (c).
e. Motor current at the new steady state point
F. Motor torque at the new steady state point
g. Motor speed at the new steady-state point

Please help answer the question quickly

The Neal Company wants to estimate next year's return on equity (ROE) under different financial leverage ratios. Neal's total capital is $18 million, it currently uses only common equity, it has no future plans to use preferred stock in its capital structure, and its federal-plus-state tax rate is 40%. The CFO has estimated next year's EBIT for three possible states of the world: $4.6 million with a 0.2 probability, $2.4 million with a 0.5 probability, and $0.4 million with a 0.3 probability. Calculate Neal's expected ROE, standard deviation, and coefficient of variation for each of the following debt-to-capital ratios. Do not round intermediate calculations. Round your answers to two decimal places at the end of the calculations.

1. The price-elasticity of demand for cocaine to be 0.3 (Ped =0.3). Is this price-elastic or price-inelastic? And Why?

2. The price-elasticity of demand for methamphetamine to be 1.5 (Ped = 1.5). Is this price-elastic or price-inelastic? And Why?

This problem asks you to do your own growth accounting exercise. Using data since 1960, make a table of annual growth rates of real GDP, the capital stock (private fixed assets from the Fixed Assets section of the BEA website, www.bea.gov, Table 6.2), and civilian employment. Assuming a_K = 0.3 and a_N = 0.7, find the productivity growth rate for each year.

a. Graph the contributions to overall economic growth of capital growth, labor growth, and productivity growth for the period since 1960.   Contrast the behavior of each of these variables in the post–1973 period to their behavior in the earlier period.

b. Compare the post–1973 behavior of productivity growth with the graph of the relative price of energy, shown in Fig. 3.11 of the textbook. To what extent do you think the productivity slowdown can be blamed on higher energy prices?

PKC Ltd is considering raising $120 million from the markets. In its recent management meeting, Winnie Poon, the CFO, suggested PKC to issue perpetual bonds with a face value of $1,000 each and a coupon rate of 8.1% paid annually. The current market interest rate is 8%. Winnie estimates a 0.3 probability that next year’s interest rate will increase to 10%, and a 0.7 probability that it will fall to 6%.

(a) Calculate the current market value of the perpetual bond If PKC issues perpetual bond based on Winnie’s suggestion . (Show your calculations).

(b) The CEO, John Lung, decides to include a call provision in the bond contract such that the bonds are callable in one year. Calculate the coupon rate of the callable bonds such that the bonds will be sold at par. Assume the bonds will be called if the interest rates fall and the call premium is $150. (Show your calculations).

Two fuel additives are being tested to determine their effect on gasoline mileage. Seven cars were tested with additive 1 and nine cars were tested with additive 2. The following data show the miles per gallon obtained with the two additives.

Use α = 0.05 and the MWW test to see whether there is a significant difference between gasoline mileage for the two additives.

Find the value of the test statistic:

W = ?

Find the p-value. (Round your answer to four decimal places.):

p-value = ?

USE SAS OR R IF SOFTWARE IS NECESSARY

2 large retail companies (W and T) are compared on a Census variable, percent of people who own their home within 3 square miles of the store. The percent that own their home for W is:

84, 79, 73, 81, 74, 77, 64, 78, 78, 78, 61

Percent for T is:

58, 61, 57, 62, 61, 59, 56, 64, 61, 70.

- Estimate the difference in percent owning their home for the two companies as to central tendency using lambda=.05. In estimating the difference, use 1 parametric approach, 1 robust(trimming) or nonparametric approach, and the best bootstrapping approach(not jackknife). Make a case for which approach is best.