Hydraulics and Fluid Mechanics in ME
Metacentre is the point of intersection of

buoyant force and the center line of body
All of these
vertical upward force through e.g. of body and center line of body
mid point between e.g. and center of buoyancy

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Hydraulics and Fluid Mechanics in ME
Stanton diagram is a

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

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