Question: A rectangular channel 1.4 m wide on a slope of 0.0026 m/m has water flowing through it at a rate of 0.5 m3/s and a

A rectangular channel 1.4 m wide on a slope of 0.0026 m/m has water flowing through it at a rate of 0.5 m3/s and a depth of 0.6 m. A cross section of the channel is constricted to a width of 0.9 m. What is the change in water surface elevation at this point?

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