A concrete rectangular channel with a bottom width of 6.0 feet and a slope of 0.5 percent conveys a discharge of 225 cfs (n 5 0.015). Determine whether the flow is subcritical or supercritical.
A trapezoidal channel with bottom width of 4.0 feet and side slopes of 2 horizontal to 1 vertical and slope of 1.0 percent conveys a discharge of 50 cfs (n 5 0.025). Determine whether the flow is subcritical or supercritical.
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