Hydraulics and Fluid Mechanics in ME
The conditions for the stable equilibrium of a floating body are

a righting couple should be formed
the meta-center should lie above the center of gravity
the center of buoyancy and the center of gravity must lie on the same vertical line
all the above are correct

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Hydraulics and Fluid Mechanics in ME
Coefficient of resistance is the ratio of

Loss of head in the orifice to the head of water available at the exit of the orifice
Actual velocity of jet at vena-contracta to the theoretical velocity
Area of jet at vena-contracta to the area of orifice
Actual discharge through an orifice to the theoretical discharge

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