A triangular channel with a side slope of 3 : 2 takes its discharge from a large reservoir of a constant water level. Assuming that the channel has a steep bed slope and the Manning roughness...

A triangular channel with a side slope of 3 : 2 takes its discharge from a large reservoir of a constant water level. Assuming that the channel has a steep bed slope and the Manning roughness coefficient, n, 0.014, find the discharge and the bed slope if the depths of flow are 1.2 m and 0.9 mat the channel entrance and at the uniform flow condition, respectively.