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Question 5.3: A 10-m wide, rectangular, concrete-lined channel (n = 0.013)...

A 10-m wide, rectangular, concrete-lined channel (n = 0.013) has a bottom slope of 0.01 and a constant-level reservoir at the upstream end. The reservoir water level is 6.0 m above the channel bottom at entrance. Assuming the entrance losses and the approach velocity in the reservoir to be negligible, determine the channel discharge and qualitatively sketch the water surface profile.

Given:

n = 0.013
S_{o} = 0.01
B = 10.0 m
H_{o} = 6.0 m
Entrance losses are negligible

Determine:

Q = ?
Water-surface profile.

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