Hydraulics and Fluid Mechanics in ME
A tank of uniform cross-sectional area (A) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to bring the liquid level from H1 to H2 will be

2A × √H₁/Cd × a × √(2g)
2A × √H₂/Cd × a × √(2g)
2A × (√H3/2 - √H3/2)/Cd × a × √(2g)
2A × (√H₁ - √H₂)/Cd × a × √(2g)

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

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

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