In the lab you place a beaker that is half full of water (density pw) on a scale. You now use a light string to suspend a piece of metal of volume V in the water. The metal is completely submerged, and none of the water spills out of the beaker. Give a symbolic expression for the change in reading of the scale. Express your answer in terms of the variables pw, V, and appropriate constants. relevant equations Fb=pVg solution Ww+Wm-Ww= Wm The metal is submerged, thus the volume of the metal is the volume of the displaced water. The metal also experience buoyancy force.