On a particular flood protection dam, a rectangular channel 12.5m wide forms part of that dam's spillway. The discharge over this spillway is 38.2 m/s. At the foot of the spillway, the channel is almost horizontal forming a hydraulic jump as a result of the sudden change in slope. If, after the jump, the depth of water is found to be 2.05 m, compute the following: a) The water depth before the hydraulic jump occurred. b) Height of the hydraulic jump. c) Length of the jump. d) The energy loss at the jump. e) Critical velocity.