Q5. A brass cube “R” inch on a side weighs (Rx10)lb. We want to hold this cube in equilibrium underwater by attaching light foam buoy to it. If the unit weight of foam is 4.5 lb/ft3, calculate the minimum required volume of the buoy? (where R is your roll number) )?

Foam Water WF Fof Wires connecting brass and foam Brass WB FDB