Question: A flat - toped riser is placed in a retention pond to control the outflow from the pond. The orifice at the bottom has a

A flat-toped riser is placed in a retention pond to control the outflow from the pond.
The orifice at the bottom has a circular shape. The orifice diameter is 0.14 m .
The center of the orifice is placed 0.25 m above the bottom of the pond.
Determine the flow rate through the orifice to the nearest \(0.1\mathrm{~L}/\mathrm{s}\) if the water depth in the pond is 0.86 m .
A flat - toped riser is placed in a retention

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