Hydraulics & Fluid Mechanics
For a floating body to be in stable equilibrium, its metacentre should be

below the center of buoyancy
above the center of gravity.
between e.g. and center of pressure
above the center of buoyancy

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Hydraulics & Fluid Mechanics
According to Bernoulli’s equation for steady ideal fluid flow

the energy is constant along a stream-line but may vary across streamlines
velocity and pressure are inversely proportional
principle of conservation of mass holds
total energy is constant throughout

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