A trapezoidal channel with 2 m bed width, 1.2 m normal depth, 1: 1 side slopes, and bed slope of XXXXXXXXXXm/m carries a water discharge of 8.5 /s. Estimate the Darcy friction factor and the Chezy...

A trapezoidal channel with 2 m bed width, 1.2 m normal depth, 1: 1 side slopes, and bed slope of 0.0040 m/m carries a water discharge of 8.5
/s. Estimate the Darcy friction factor and the Chezy coefficient for this case.

Water is flowing in a 3-m-wide rectangular channel ac a normal depth of 2 m. The channel is running on a slope of 0.0025 m/m and has a Chezy coefficient of 90. (a) What is the discharge in the channel in
 /s (b) What shear stress will be imparted to the channel bottom by this flow?