Hydraulics and Fluid Mechanics in ME
Metacentric height for small values of angle of heel is the distance between the

centre of gravity and metacentre
centre of buoyancy and metacentre
free surface and centre of buoyancy
centre of gravity and centre of buoy-ancy

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Hydraulics and Fluid Mechanics in ME
Froude number is significant in

All of the listed here
Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
Supersonics, as with projectile and jet propulsion
Simultaneous motion through two fluids where there is a surface of discontinuity, gravity forces, and wave making effect, as with ship's hulls

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