A partially filled pipe 1.0 m in diameter is laid on a uniform slope 1: 2000. Calculate the maximum flow that can run through this pipe (n = 0.016). A rectangular channel 15 ft wide flows at a normal...

A partially filled pipe 1.0 m in diameter is laid on a uniform slope 1: 2000. Calculate the maximum flow that can run through this pipe (n = 0.016).

A rectangular channel 15 ft wide flows at a normal depth of 6 ft. The discharge is 530 cfs and the Manning n value is 0.025. What is the rate of energy dissipation in ft per ft of channel length in this channel?