The compound channel shown in the figure below has the following characteristics: b1 = 15 m, b2 = 50 m, n1 = 0.020, n2 = 0.035, and Z = 3m. The bottom slope is 0.001. Determine the discharge, Qfor the normal depth of 4 m in tne main channel.
Extracted text: n2 b2 b,