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Water flows through a rectangular channel 7.3 meter wide, at a rate of 3.1 m^3/s. with...

Water flows through a rectangular channel 7.3 meter wide, at a rate of 3.1 m^3/s. with a depth of 3 meters. The channel is lined with rough concrete and has a slope of 0.075 %. Calculate the critical depth, and normal depth and classify the slope. Manning's number for the channel is 0.014.

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