The celerity of the pressure wave is 976 m/s instantaneously in a 600 m long pipe from a reservoir with a diameter of 1.20 m. The flow rate is initially 0.85 cu.m./sec of water. Compute the water...

Extracted text: The celerity of the pressure wave is 976 m/s instantaneously in a 600 m long pipe from a reservoir with a diameter of 1.20 m. The flow rate is initially 0.85 cu.m./sec of water. Compute the water hammer pressure at a point in the pipe 90 m from the reservoir if a 1.0 sec valve closure reduces the flow rate from 0.28 cu.m./s to 0.