Hydraulics and Fluid Mechanics in ME
The buoyancy depends upon the

Pressure with which the liquid is displaced
Viscosity of the liquid
Compressibility of the liquid
Weight of the liquid displaced

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Hydraulics and Fluid Mechanics in ME
When a liquid is flowing through a pipe, the velocity of the liquid is

Minimum at the centre and maximum near the walls
Maximum at the centre and zero near the walls
Zero at the centre and maximum near the walls
Maximum at the centre and minimum near the walls

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