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What are the normal and critical depths for a trapezoidal channel with following settings? Q =...

What are the normal and critical depths for a trapezoidal channel with following settings?

Q = 2000

length_unit = "ft"

g = 32.2

So = 0.0005

b = 40.0

m = 3.0

mm = 3.0

n = 0.02

h = 1.486

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