The rectangular channel has a width of 1.5 m, and the depth of the water is originally 2 m. If the flow is 4.50 m 3 /s, show that the upstream flow is subcritical, and determine the required depth of...

The rectangular channel has a width of 1.5 m, and the depth of the water is originally 2 m. If the flow is 4.50 m³/s, show that the upstream flow is subcritical, and determine the required depth of the water, y ′, at the top of the bump so that the downstream flow can be transformed to supercritical flow. What is the downstream depth?