The stormwater system of a given site includes the surface overland flow which exits by a rectangular concrete channel to (Manning‘s n = 0.015) drain it. The drainage channel is 100 m long, 20 cm wide, and has a longitudinal slope of 0.6%. The catchment surface of 1950 m2 has an average slope of 0.7%. The site surface is rough asphalt pavement (Manning‘s n = 0.020) and the distance from the upstream catchment boundary to the channel inlet is 100 m. The 25-yr design effective rainfall rate of 78.45 mm/h, which will produce an estimated channel flow rate of 0.034 m3 /s and channel water depth of 0.2 m.

Determine:

a) Estimate the time of concentration of the overland flow over the site using the kinematic wave approach.

b) Estimate the time of concentration from the open channel using the velocity approach and Manning’s equation.

c) Estimate the total time of concentration of the catchment

A 1-cm diameter UO2 fuel rod with zirconium clad of thickness 0.025 cm develops 16.4 kW/m. The coolant heat transfer coefficient is 7000 W/m2 oC, and the fluid saturation temperature is 280 oC. Assume any missing data, and write all assumptions

Questions

1) Write the 1D steady state conduction equation of the fuel rod and the clad,

2) Find the thermal conductivity of the fuel and the clad,

3) Specify the boundary conditions,

4) Write the solution of the equation for the fuel and the clad,

5) Compute the heat flux at the surface of the fuel,

6) What is the temperature at the center of the fuel rod?

7) What is the temperature at the surface of the fuel rod?

8) What is the temperature at the surface of the clad?

9) How much the maximum and minimum temperatures and where is each?

10) What is the total rate of heat (Watts) at the fuel-clad interface and coolant-clad interface?

5 kg of butane (C4H10), contained in a piston-cylinder device undergoes a process from P1 = 5 MPa, T1 = 500 K to P2 = 3 MPa and T2 = 450 K during which the relationship between pressure and specific volume is PVn = C.
a. Using the data from Generalized Compressibility chart, determine the amount of work done during the process.

b. If butane is assumed an ideal gas, how would you compare the work done during the process to the one that you have obtained above.
QUESTION 9 (PO2, CO2, C6)
For a system that contains butane as described in the above question (QUESTION 8), by making appropriate assumptions, investigate and discuss the effect of polytopic exponent on work boundary and heat transfer, for the system to reach the same:
a. final volume. b. final pressure ( 25 marks )

PLEASE ANSWER QUESTION 9 ACCORDING TO GIVEN MARKS

Your (turtle) program in python must include: Create four Red turtles and four Blue turtles using one or more lists. • Start each of the Red turtles at a different random location on the left side of the screen within the range of the square formed by (-100, 100) and (0, -100) and each of the Blue turtles at a random location on the right side of the screen within the range of the square formed by (0, 100) and (100, -100). • Each of the red and blue turtles should move randomly. • Draw a boundary for the game as a circle with a 300 unit radius. You will use an invisible turtle to do this. It does not count as one of the turtles on either team. • If a turtle hits the border the turtle should have its color changed to black and should jump back to the center of the screen (0, 0) and continue moving. • All the turtles will move the same speed. • The turtles should continue moving until 1000 time units have elapsed.

Part 1: Software Testing :

Assume that you are building a web-based grocery shopping system (similar to the ones that

Woolworths and Coles provide). The system allows customers to add grocery items to a (virtual)

shopping cart and pay online. They will then be notified when the order is ready for pick-up in the

selected store.

1. Identify one functional and one non-functional requirement related to that system .

2. Describe how you would test those two requirements .

3. For the item counts in the shopping cart, describe what equivalence classes and boundary values

you would choose when creating the corresponding unit tests .

Part 2: Project Management (Risk Management) :

Consider the scenario outlined in Part 1.

1. Identify two risks associated with the development of that system .

2. Assess their probability and severity .

3. Provide strategies to manage the risks .

Can someone give me some ideas?

Methods

Participants

Participants (N = 8,997) were undergraduate students at 20 2- and 4-year college and university campuses in Minnesota who completed the 2015 College Student Health Survey.¹⁷ Data were collected online between February 16, 2015 and March 27, 2015. Most (68%) participants were female. Participants identified as White (81.6%), Asian (8.6%), Black or African American (6.1%), American Indian or Alaska Native (2.1%), Native Hawaiian or other Pacific Islander (0.4%), other races (1.9%), and prefer not to answer (2.9%). Percentages did not add to 100% because respondents could indicate more than one race. The median age of the sample was 21 years old (range =18–74). Most (73%) of the sample was enrolled in 4-year colleges and universities. Almost half (47%) were first-generation college students (ie, neither parent had a 4-year college degree). The sample included participants who identified as heterosexual (89%), bisexual (4%), g** or lesbian (2%), or other (4%). The study was approved by the institutional review board (IRB) of the university that sent the survey (Study # 0012S75881). Other schools signed an agreement with that university or sought approval from their own IRB. All study procedures were carried out in accordance with the latest version of the Declaration of Helsinki. Students provided consent on the online survey.

Measures

Factors perceived to affect academic performance

Factors that were perceived to affect college academic performance were assessed by a measure that presented students with a list of 20 factors, including stress.¹⁷Students rated each factor in terms of whether they had experienced it and, if so, whether or not it had affected their academic performance during the past 12 months (1 = I do not have this issue/not applicable; 2 = I have this issue, my academics have not been affected; 3 = I have this issue, my academics have been affected). The similar question on the NCHA survey assessed how academics were affected (eg, scored lower on a test or project) in separate responses, graded for severity of the academic impairment, whereas this survey had a single response option for academics being affected by the factor.

Stress

Stress was measured on a 10-point scale on which students rated their average level of stress over the past 30 days (1 = Not stressed at all to 10 = Very stressed). The construct validity of scores on this measure was supported by the finding that students who scored higher on this measure also reported more days with poor mental health (including stress, depression, and problems with emotions) in the past month (r = .49, p < .001).

Coping self-efficacy

Coping self-efficacy was measured on a 10-point scale on which students rated their ability to manage their stress over the past 30 days (1 = Ineffective to 10 = Very effective). The construct validity of scores on this measure was supported by a negative correlation between coping self-efficacy and stress (r = −.47, p < .001).

Resilience

The Brief Resilience Scale (BRS)¹⁸ is a 6-item measure of resilience, defined as the ability to “bounce back or recover from stress” (p. 194). Students rated each item (eg, “It does not take me a long time to recover from a stressful event”) on a 5-point scale (1 = Strongly Disagree to 5 = Strongly Agree). Higher scores indicate greater resilience. Smith et al reported a test-retest reliability coefficient of .69 in a sample of undergraduate students over a one-month period and Cronbach’s alphas ranging from .84 to .87. In the current sample, α was .88.

Social support

Students rated the supportiveness of their family, friends, college/university faculty, and college/university staff on four separate items. Each item was rated on a 10-point scale (1 = Very unsupportive to 10 = Very supportive). To create an overall measure of social support, scores on these four items were averaged (α = .84).

Academic performance

Participants reported their cumulative grade point average (GPA) to two decimal places (M = 3.35, SD = 0.49). The correlation between self-reported college GPA and data from student records was r = .90 in a meta-analysis.¹⁹

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^{Q. Research Methods}

Discuss the methods the researchers used for: selecting study participants and collecting and analysing data.

What were the strengths and weaknesses of the methods used?

please assume you are a reporter writing ten years hence. Please discuss the technological changes that have been made since 2017 and how those changes have affected humanity, and how those changes have affected themselves. your response should be 500 words

Flexibility/Flexiblization

. During the preparation of your dish(chocolate pudding, pasta, bread), the chemical composition of each ingredient plays a role in the texture, aroma and appearance of the final product. Use the table below to describe the chemical composition (molecules, elements, ions, etc.) for the basket ingredients and its corresponding chemical changes and/or physical changes occurring while cooking.  

Globalization is defined as a modern term used to describe the changes in societies and the world economy that result from dramatically increased international trade, foreign direct investment, and cultural exchanges.

Drivers: Technology Changes, Changes in access to information, and Changes in how people save, spend, and invest

List and Discuss: 1) Discuss the significance and impacts resulting from each driver/factor, and 2) Consider and discuss the current day influence and impacts (pros and cons) of these three drivers on the U.S. economy and global economy.