Water flows in a rectangular channel 8 m wide at a depth of 3.5 m. The discharge is 100 /s.If the channel width is decreased gradually to a width of 7 m. a. What is the depth in the constricted...

Water flows in a rectangular channel 8 m wide at a depth of 3.5 m. The discharge is 100
/s.If the channel width is decreased gradually to a width of 7 m.

a. What is the depth in the constricted section? Use a contraction coefficient of 0.3.

b. What is the maximum height the channel bed can be raised without disturbing the upstream conditions?