A trapezoidal channel has a bottom width of 3.25 m and sides with a slope of 1 vertical

to 1.5 horizontal. The slope of the bed is 1 in 2000 and the depth of water is 1.2 m.
a) Using the Manning Formula with n = 0.025, calculate the velocity and

the discharge rate of the flow.

2. b) Calculate the Chezy number for the channel and use that to re- calculate the velocity and the discharge rate of the flow.

3. c) If the channel had a Chezy number of 42 state the effect on the velocity and discharge and explain why this would occur.

(a) Stations A and B are at the same sea surface elevation level and have a bottom depth of 2000 m. Both stations have seawater with a uniform density with respect to depth; however the seawater density at A and B are different (sA = 24.7 kg/m3 ; sB = 25.4 kg/m3 ). [A = 40o 45' N, 25o 45' W; B = 41o 5' N, 24o 45' W]

(b) Does this current vary with respect to depth ? If so, explain how it varies and why

JAVA programming language:

For refrence:

nextInt ( )

Scans the next token of the input as an int.

How many times does the while loop execute, if the input is 38 20 4 0?

Assume a Scanner object scnr has been instantiated, and that the tokens in the input are delimited by the space character. That means there are 4 tokens in the input.

int num = 2000;

while (num >= 20) {

//Do something

num = scnr.nextInt();

}

select one:

a. 2

b. 1

c.0

d.3

One of the most well-known policy approaches to address the drug problem in the United States has been the “war on drugs” declared by President Nixon in 1971. Review the drug control efforts following this declaration and through the year 2000.

Respond to the following:

How did the “war on drugs” influence subsequent drug control policy in the United States?

Upon reflection of the costs and consequences of this drug war, was this an effective approach to dealing with the country’s drug problem?

Provide your sources.

From 1997-2006, the returns on Magni were as follows, Using Blume's Formula:

A. What would be the 1-year average forecast?

B. What would be the 2-year average forecast?

C. What would be the 6-year average forecast?

D. What would be the 10-year average forecast?

From 1999 to 2017, the average IPO rose by 19.2% in its first day of trading. In 2000, 115 deals doubled in price on the first day. What factors might contribute to the huge 1st-day returns on IPOs? Some critics of the current IPO system claim that underwriters may knowingly underprice an issue. Why might they do this? Why might issuing companies accept lower IPO prices? What impact do institutional investors have on IPO pricing?

On 2002/4/1, Peter borrowed $2000, agreeing to pay interest at 6%/year compounded monthly. He paid $400 on 2004/9/1 and $500 on 2008/11/1. He will make two more payments on 2011/10/01 and 2013/7/01, with the payment on 2011/10/01 being 20% higher than that on 2013/7/01. What payment will he make on 2013/7/01? Remark: Dates are given in the format YYYY/MM/DD.

3The data for initial hindered settling velocities of a suspension are given in the following table. a)Size the area of a clarifier to handle a flow of 2300 m3/d containing a Total Suspended Solids (TSS) concentration of 2100 mg/L. The underflow SS. Concentration is 10 000 mg/L. b)What is theflowrate of the underflow?

C, mg/L1000 2000 4000 6000 8000 10000 15000
V, m/h 3.74 2.82 2.26 1.04 0.49 0.25 0.072

Consider the dataset regarding the drop in light percent output (output) and two input variables – bulb surface (qualitative) and length of the operation hours (quantitative). The data is available in a sheet named ‘Problem 3’. Answer the following.

(a) Write down the overall model form if one wishes to build a second order model for each value of the qualitative variable

(c) Build a regression model showing the 90% confidence ranges of the regression parameters. Write down the mean estimates of the regression parameters for the model in (a)

(d) Write down the 90% bounds of the estimate of the y-intercept (constant term)
(e) Compute the model prediction for a bulb with a dirty surface and with 1500 operation hours.

(f) Perform one-way hypothesis testing for the existence of ?2 term, where ?2 is the qualitative input. Use ? = 0.05

DATA

Here are the figures for the loyalty of a sample of imperial soldiers on the Death Star:

Please fill in the appropriate totals:

Assuming these totals, what counts would be expected in each cell (to two places after the decimal) if soldier type and loyalty status were independent?

Assuming soldier type and loyalty status are independent, fill in (two two places after the decimal) each chi-square contribution:

What is the value of the chi-square test-statistic (to one place after the decimal)?

Using an online chi-square calculator, what is the p-value for this rounded chi-square value?

Do we have evidence at the 10% level that soldier type and loyalty status (for all Death Star soldiers) are dependent (0 = no, 1 = yes)?
Do we have evidence at the 5% level that soldier type and loyalty status (for all Death Star soldiers) are dependent (0 = no, 1 = yes)?
Do we have evidence at the 1% level that soldier type and loyalty status (for all Death Star soldiers) are dependent (0 = no, 1 = yes)?