Hydraulics and Fluid Mechanics in ME
The angle of contact in case of a liquid depends upon

any one of the above
both of die above
the nature of the liquid and the solid
the material which exists above the free surface of the liquid

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Hydraulics and Fluid Mechanics in ME
The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface)

(IG/Ax̅) - x̅
(Ax̅/IG) + x̅
(IG/Ax̅) + x̅
(IG/x̅) - Ax̅

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