Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant pressure, the speed capacity and power vary

As square of density
Inversely as density
Directly as the air or gas density
Inversely as square root of density

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Hydraulics and Fluid Mechanics in ME
Meta-centric height is given as the distance between

Center of buoyancy and metacenter
The center of gravity of the body and the center of buoyancy
The center of gravity of the body and the metacenter
The center of gravity of the body and the center of pressure

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