Question: A 40-ft-wide rectangular channel with a bottom slope of S = 0.0025 and a Manning's coefficient of n = 0.035 is carrying a discharge of

A 40-ft-wide rectangular channel with a bottom slope of S = 0.0025 and a Manning's coefficient of n = 0.035 is carrying a discharge of 1, 750 cfs. Using appropriate computer software (or desktop methods), determine the normal and critical depths. Also construct a specific energy curve for this discharge.

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