Question: A rectangular channel with n = 0 . 0 1 3 , 3 . 0 5 m wide laid on a slope of 0 .

A rectangular channel with n=0.013,3.05m wide laid on a slope of 0.00575, carries 4.53m3s of flow. The channel is to be contracted as to
produce critical flow. What width of contracted section will accomplish this, neglecting any loss in the gradual reduction in width?
A rectangular channel with n = 0 . 0 1 3 , 3 . 0

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