You will need to read through the lab procedure and background information to solve this question. Need help? See a TA or your instructor in office hours. CaCrO4 is a slightly soluble solid. In the lab, you find that addition of 357.73 µL of 1 M H2CrO4 to 7.924 mL of 0.3 M Ca(NO3)2 results in formation of a persistent precipitate. Addition of water (1.878 mL) just dissolves the precipitate. What is the experimental value of Ksp for CaCrO4 according to the information above? Provide your response to 4 digits after the decimal.

Glass Science -- Stress Relaxation : please show calculation in detail or with explanation:

1] a) Show, by calculation, how much time is required to relax 90% of the stress in a glass at the annealing point; the initial stress is 300 MPa, the temperature is 535C, the elastic modulus is 55 MPa, the shear modulus is 10 GPa and Poisson’s ratio is 0.3

b) What about at the strain point ?

c) What about at the softening point where tempering is often initiated ?

*You should understand how these kinetics play a role in annealing, tempering and glass/metal/ceramic sealing.

Given below are likely returns in case of shares of Sun Ltd. and Moon Ltd. In the various economic conditions. Both shares are presently quoted at Rs. 100 per share.

Economic Condition       Probability         Returns of Sun Ltd.(%)    Returns of Moon Ltd.(%)

High Growth                      0.3                                100                                        150

Low Growth                       0.4                                110                                        130

Stagnation                         0.2                                120                                          90

Recession                           0.1                                140                                          60

Compute – Expected Return and Standard Deviation for both stocks and provide your suggestion for suitable investment.

( The answer should be a min of 800 Words with a theory explanation )

Let X and Y be independent discrete random variables with the following PDFs:

(a) Show work to find the PDF h(w) = P[W=w] = (f*g)(w) (the convolution) of W = X + Y

(b) Show work to find E[X], E[Y] and E[W] (note that E[W] = E[X]+E[Y])

The performance and fees of 4 share classes of the same fund are in following table:

                                      Class Inst                Class Inv               Class A                  Class B

Expense ratio                     1%                          1%                        1%                       1%

12b-1 fee                                                            0.3%                     0.1%

Front-end load                                                                                 4%

Back-end load                                                                                                           start at 6%

                                                                                                                                    and ↓ 1%/year

All share classes have the same annual rate of return of 10.0%. If you have $10,000 to invest

in each of these share classes, how much will you get if you plan to sell them after 2 and 8

years?

Q: In MATLAB, make time-domain graphs of a Conventional DSB AM signal u(t) = A_c[1 + am(t)]cos(2×π×f_c×t), with A_c = 1, m(t) = cos(2×π×f_m×t), f_c = 1 kHz, f_m = 50 Hz, for four cases of AM modulations: a = 0, a = 0.3, a = 1, a = 1.3. Your graphs should be over four periods of the message (i.e., 0 < t < 4/fm). Include your code in your solution as well as the four graphs.

Assuming that the tax rate is 30%, Working Capital and Fixed Capital investments are Zero, Calculating FCFF from Net Income shows the following:

FCFF = Net Income + Interest Expense (1-T) + Depreciation Expense

FCFF = 107.28 + 17.25 (1-0.3) + 49.50

FCFF = $ 168.85

Required: Why do you add back the after-tax interest but the before-tax depreciation in the calculation of FCFF?

An Oxxo has a small parking lot with three spaces reserved for customers. If the store is open cars arrive and use a space with an average rate of 2 per hour. For n = 0, 1, 2, 3, the probability P n of that there are exactly n spaces occupied is P 0 = 0.1, P 1 = 0.2, P 2 = 0.4, P 3 = 0.3.
a) Describe the interpretation of this parking lot as a queuing system, that is, describe the parameters indicated. What level of service is provided?
b) Determine the basic performance measures: L and W of this queuing system.

Question 4

Jupiter Equipment, Co. (JE) has 20 million common shares outstanding that currently trade at $11 per share. The company also has $55 million of bank debt that costs 5% per year. The estimated standard deviation of JE’s stock return is 0.5, the estimated standard deviation of S&P 500 index is 0.3, and the correlation between the JE’s stock and the S&P 500 is 0.45. If the market risk premium is 6%, the risk-free rate is 2% and the firm's tax rate is 35%, compute the weighted average cost of capital.