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In-class gradually varied flow problem (supercritical) A rough-concrete trapezoidal channel (n=0.022) with a 3.5-ft bottom width, side slope m=2, and bed slope of 0.012 discharges 185 cfs of fresh water from a reservoir. The critical depth is achieved at the entrance of the channel. Determine the water surface profile within the channel. 1 Numeric 1 point Using a spatial step of Ax = 1 [ft], what is the water depth 5 [ft] downstream of the entrance to the channel in [ft]? Type your answer... 2 Numeric 1 point Using a spatial step of Ax = 1 [ft], what is the water depth 10 [ft] downstream of the entrance to the channel in [ft]? Type your answer... 3 Numeric 1 point What is the absolute difference in [ft] in the computed depth at x = 10 [ft] when using a spatial step size of Ax = 1 [ft] versus a spatial step size of Ax = 10 [ft]? Type your