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 =0.0202) and is to carry 10 m3/s. Can this channel be built with aslope of So = 0.00010 if it is necessary to keep the velocity below 0.75 m/s to prevent scouring of the bottom? Explain.