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Question: problem 2 determine the most efficient section based on flow...

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Problem 2. Determine the most efficient section based on flow resistance for a trapezoidal channel. Assume that the left and right bank slopes are equal: mm. Hint: You can solve this in two steps. First set dPI dm0 to find the value of m. Then you can set dPI dy-0 (also dAl dy 0) using the value of m you just found. by(m+m.)

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