A weir (see Video V10.13) of trapezoidal cross sectionis
Chapter 3, Problem 3.119(choose chapter or problem)
A weir (see Video V10.13) of trapezoidal cross section is used to measure the flowrate in a channel as shown in Fig. P3.119. If the flowrate is \(Q_0\) when \(H=\ell /2\), what flowrate is expected when \(H=\ell\)?
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