Hydraulics and Fluid Mechanics in ME
The discharge through a wholly drowned orifice is given by (where H1 = Height of water (on the upstream side) above the top of the orifice, H2 = Height of water (on the downstream side) above the bottom of the orifice, and H = Difference between two water levels on either side of the orifice)

Q = Cd × bH₁ × √(2gh)
Q = Cd × bH2 × √(2gh)
Q = Cd × bH × √(2gh)
Q = Cd × b (H2 - H1) × √(2gh)

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Hydraulics and Fluid Mechanics in ME
A floating body is said to be in a state of stable equilibrium

only when its centre of gravity is below its centre of buoyancy
when the metacentre is above the centre of gravity
when its metacentric height is zero
when the metacentre is below the centre of gravity

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