Arectangular river channel, 7 m wide, carries water at a depth of 1.4 m. the slope of the channel is 1/500. the channel has poor alignment and the bed is covered with stones such that a manning's n value of 0.06 is appropriate. calculate the flow rate in the channel and prove whether the flow is sub-critical or super- critical. [5 marks] (c) for a rectangular channel, determine the relationship between its width, w, and depth, d, that will result in the maximum discharge.

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increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.