Marco was an economics major in college until he discovered he could major in strength and conditioning. Then he switched majors
1 answer:
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Answer / Explanation:
Kindly note that the question is incomplete. However, kindly find the complete question below and the answer.
Complete Question
Water is flowing in a trapezoidal channel at a rate of Q=20m³/s . The critical depth y for such a channel must satisfy the equation:
0 = 1 − Q² / gA³c . B Where g= 9.81m /s² and Ac = the cross-section area can be related to depth y by B = 3+y and Ac = 3y+y²/2. Solve for the critical depth using (a). the graphical method,
Answer:
Given the equation,
0 = 1 − Q² / gA³c. B
Now substituting the given value g= 9.81m /s² , Q =20m³/s, B = 3+y, and Ac = 3y+y²/2,
We get:
0 = 1 - 20² / (9.81) ( 3y + y²/2)³ (3+y)
Hence we choose f(y) = 1 - 40.7747 / (3y + y²/2)³ . (3 + y) and solve for f(y) = 0
Therefore,
To solve using a graph, we take twelve sample points ( starting at y = 0.25 in step of 0.25m and plot a graph using MS- Excel. Kindly find the graph below.
2) As evident from the sample point and the graph function f(y) gets close to zero at y = 1.5, hence the root of f(y) = 0 is Xr = 1.5
Answer:
1. 3 years
2. 3.375 years
3. The storage facility project
Explanation:
The payback period measures how long it takes for the amount invested in a project to be recouped from cummulative cash flows.
When there are more than 1 project to be chosen from, the project whose payback period is the least should be chosen.
Therefore, the storage facility project should be chosen.
Explanations on how the payback period is calculated can be found in the attached images. Please contact me if you need clarification.
I hope my answer helps you.
