Question: A rectangular sharp-crested weir is used to measure the flowrate in a channel of width (10 mathrm{ft}). It is desired to have the upstream channel

A rectangular sharp-crested weir is used to measure the flowrate in a channel of width \(10 \mathrm{ft}\). It is desired to have the upstream channel flow depth be \(6 \mathrm{ft}\) when the flowrate is \(50 \mathrm{cfs}\). Determine the height, \(P_{w}\), of the weir plate.

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