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A trapezoidal channel has size slopes of 3:1 (H:V), a bottom width of 22 feet, a...

A trapezoidal channel has size slopes of 3:1 (H:V), a bottom width of 22 feet, a longitudinal slope of 0.0003, a Manning’s roughness coefficient of 0.023, and carries a flow rate of 340 cfs.

a) Calculate the normal depth in this channel.
b) Calculate the normal specific energy.
c) Calculate the Froude number. State the classification of flow.
d) State how the critical depth will compare to the normal depth and why.

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