Hydraulics and Fluid Mechanics in ME
The discharge over a rectangular notch is

Inversely proportional to H3/2
Directly proportional to H3/2
Inversely proportional to H5/2
Directly proportional to H5/2

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Hydraulics and Fluid Mechanics in ME
Buoyant force is

The resultant force on a body due to the fluid surrounding it
The force necessary to maintain equilibrium of a submerged body
The resultant force acting on a floating body
Equal to the volume of liquid displaced

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