A trapezoidal channel with a bottom width of 3.0 m and sides with a slope of 2:1 (horizontal vertical) is lined with fine gravel (n = 0.020) and is to carry 10 m3/s. Can this channel be built with a slope of S0 = 0.00010 if it is necessary to keep the velocity below 0.75 m/s to prevent scouring of the bottom? Explain.
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