Water flows with a velocity of 3.0 m/s and a depth of 3.0 min a rectangular channel. (a) What is the change in water surface elevation produced by a gradual upward change in bed elevation (hump) of 30...

Water flows with a velocity of 3.0 m/s and a depth of 3.0 min a rectangular channel. (a) What is the change in water surface elevation produced by a gradual upward change in bed elevation (hump) of 30 cm? (b) What would be the change in the water surface elevation if there were a gradual drop of 30 cm?