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Hydraulics — Open Channel · Question 1

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A. Uniform flow, specific energy & critical depth

An earthen trapezoidal irrigation canal has a bottom width $b=8\,\text{ft}$ , side slopes $z=2$ (H:V), and runs at a normal depth $y=3\,\text{ft}$ on a slope $S=0.0005$ with Manning $n=0.025$ . The uniform discharge is most nearly:

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