A triangular channel with side slopes of 1: 1 and a depth of flow of2.0 m, issues a discharge of20.0  What is the regime of flow? A rectangular channel 4.0 ft wide carries 100  1s at a depth of 1.5...

A triangular channel with side slopes of 1: 1 and a depth of flow of2.0 m, issues a discharge of20.0
 What is the regime of flow?

A rectangular channel 4.0 ft wide carries 100
 1s at a depth of 1.5 ft. Is the flow subcritical or supercritical? For the same discharge, what depth will give critical flow?