Using the Manning formula, show that the theoretical depth for maximum velocity in a circular conduit is 0.81 of the diameter XXXXXXXXXXWater is to flow in a rectangular flume at a rate of 1.42 m 3 /s...

Using the Manning formula, show that the theoretical depth for maximum velocity in a circular conduit is 0.81 of the diameter. 10.83. Water is to flow in a rectangular flume at a rate of 1.42 m 3 /s and at a slope of 0.0028. Determine the dimensions of the channel cross section if width must be equal to twice the depth. Use n = 0.017.