Question: Design a rectangular channel. The discharge is 5 0 ft 3 / s , slope is 0 . 0 1 ft / ft , Manning

Design a rectangular channel. The discharge is 50 ft3/s, slope is 0.01 ft/ ft, Mannings n is 0.02(i.e., like in Problem 4.4). Your design is defined as most efficient if the cross-sectional area is minimized. What channel width, b, will produce the most efficient channel for these conditions?

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