Hydraulics & Fluid Mechanics
When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies

linearly with radial distance
inversely as the radial distance
as the square of the radial distance
inversely as the square of the radial distance

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Hydraulics & Fluid Mechanics
The horizontal component of force on a curved surface is equal to the

force on a vertical projection of the curved surface
product of pressure intensity at its centroid and area
force on the horizontal projection of the curved surface
weight of liquid vertically above the curved surface

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