Hydraulics and Fluid Mechanics in ME
In an immersed body, centre of pressure is

Below be centre of gravity
At the centre of gravity
Could be above or below e.g. depending on density of body and liquid
Above the centre of gravity

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Hydraulics and Fluid Mechanics in ME
Coefficient of velocity is defined as the ratio of

Actual velocity of jet at vena contracta to the theoretical velocity
None of these
Area of jet at vena contracta to the area of orifice
Actual discharge through an orifice to the theoretical discharge

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