Water is fed from a lake into an uncontrolled channel that runs for a long distance downstream as shown in Figure P12.41. The channel is an 8-ft rectangular section, running on a slope of 0.005 ft/ft,...

Water is fed from a lake into an uncontrolled channel that runs for a long distance downstream as shown in Figure P12.41. The channel is an 8-ft rectangular section, running on a slope of 0.005 ft/ft, with a roughness coefficient of 0.030. If the water level in the lake is 12 ft above the channel invert at the lake outlet, what is the discharge in the channel?