A block of 70 kg kg mass m climbs an incline plane which is making 85 degrees with the horizontal with an initial velocity 30 m/s .
How long time later does the block return to its initial position If the static, kinetic friction constant is 0.2 and gravity is 9.8m/s2?
Please write explicit solution
In: Physics
In: Physics
Suppose your expectations regarding the stock market are as follows:
| State of the Economy | Probability | HPR | |
| Boom | 0.2 | 43% | |
| Normal growth | 0.4 | 14 | |
| Recession | 0.4 | -17 | |
Use above equations to compute the mean and standard deviation of
the HPR on stocks. (Do not round intermediate calculations.
Round your answers to 2 decimal places.)
In: Finance
The continuous random variable X has the following distribution: pX[x] = kx√(1 + 2x) (Hint: There is 1 + 2x in the square root.) for 1 ≤ x ≤ 4.
1-Determine k.
2-Determine the CDF of X.
3-Determine the mean of X.
4-Calculate P(0.2 < X < 0.5) only by using CDF of X.
In: Statistics and Probability
2. The tentacle of a squid
By what percentage would a squid tentacle increase in length when a circumferential muscle contracts with a strain of 0.2?
Answer: The final length is 1.56 times the initial length, which is an increase of 56%. But how do I get to this answer? Please show work and formulas used to get the provided answers. Thank you!
In: Physics
If Indiana County, Pennsylvania, coal with M = 3% and A = 8.5% is burned with 10% excess air, calculate the actual air fuel ratio and the ideal Orsat analysis (no CO and no unburned carbon). Also, determine the theoretical Orsat analysis if the HHV of the refuse is 5500 kJ/kg and the % CO in the dry flue gas is 0.2% of the dry flue gas.
In: Mechanical Engineering
The following table shows the nominal returns on Brazilian stocks and the rate of inflation.
| Year | Nominal Return (%) | Inflation (%) |
| 2012 | 0.2 | 6.9 |
| 2013 | -16.0 | 7.0 |
| 2014 | -14.0 | 7.5 |
| 2015 | -42.5 | 11.8 |
| 2016 | 67.3 | 7.4 |
| 2017 | 28.0 | 4.0 |
a. What was the standard deviation of the market returns?
b. Calculate the average real return
In: Finance
|
Given that preference shares have an expected dividend stream of 20 cents in perpetuity and that the current market price (cum-dividend) of the preference shares is $2.40, calculate the cost of capital(kp) of these preference shares. For this question, I am not sure why the answer is 9.09% rather than 8.33% that ive calculated from 0.2/2.4. Kindly explain. |
|
In: Finance
Use the following information on states of the economy and stock returns to calculate the expected return for Dingaling Telephone: (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.)
| State of Economy | Probability of State of Economy |
Security Return If State Occurs |
||||||||||
| Recession | 0.4 | -11 | % | |||||||||
| Normal | 0.2 | 16 | ||||||||||
| Boom | ? | 23 | ||||||||||
In: Finance
After graduating from Yorkville University with a BBA you are
making a good salary and now want to begin investing. You are
analyzing two Canadian Banks as investment options. Bank of Nova
Scotia (BNS) and Bank of Montreal (BMO). The stock price of BNS is
current $65. The price of BNS next year will be $53 if the economy
is in a recession, $73 if the economy is normal, and $85 if the
economy is expanding. The likelihood of recession, normal or
expansion are 0.2, 0.6 and 0.2. respectively. BNS had suspended
their dividend due to the pandemic crisis and has a beta of
0.68. BMO has continued to pay its dividends and has an
expected return of 13%, a standard deviation of 34%, a beta of
0.45, and a correlation with BNS of 0.48. The market portfolio has
a standard deviation of 14%.
a) Assuming that the CAPM holds, what is the expected return and
standard deviation of BNS?
After careful analysis you decide to invest 60% of your portfolio
in BNS and 40% in BMO.
What are the ;
b) expected return
c) standard deviation
d) beta of this portfolio?
In: Finance