Water flows at 12 m3 /s down a rectangular channel through a 4 m wide channel of unfinished concrete with a slope of 0.008. if the water depth at a specific point is 2 m, determine the distance x to where the depth is 2.4 m. use increments of δy = 0.1 m. plot the profile for 2 m ≤ y ≤ 2.4 m.