Hydraulics and Fluid Mechanics in ME
A body floats in stable equilibrium

When its meatcentric height is zero
When its e.g. is below its center of buoyancy
Metacentre has nothing to do with position of e.g. for determining stability
When the metacentre is above e.g.

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Hydraulics and Fluid Mechanics in ME
In a forced vortex motion, the velocity of flow is

directly proportional to the square of its radial distance from the axis of rotation
inversely proportional to its radial distance from the axis of rotation
directly proportional to its radial distance from axis of rotation
inversely proportional to the square of its radial distance from the axis of rotation

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