Hydraulics and Fluid Mechanics in ME
Buoyant force is

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

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Hydraulics and Fluid Mechanics in ME
Stanton diagram is a

log-log plot of relative roughness against Reynolds number
semi-log plot of friction factor against Reynolds number
semi-log plot of friction factor against relative roughness
log-log plot of friction factor against Reynolds number

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