The Wide World of Fluids article titled "Grand Canyon Rapids Building.". During the flood of 1983, a large hydraulic jump formed at "Crystal Rapid" on the Colorado River. People rafting the river at that time report "entering the rapid at almost \(30 \mathrm{mph}\), hitting a 20 -ft-tall wall of water, and exiting at about \(10 \mathrm{mph}\)." Is this information (i.e., upstream and downstream velocities and change in depth) consistent with the principles of a hydraulic jump? Show calculations to support your answer.