A piece of steel has a weight w, an apparent weight (see Problem 14.75) w water when completely immersed in water, and an apparent weight would when completely immersed in an unknown fluid.
(a) Prove that the fluid's density relative to water (specific gravity) is (w - Would) / (W - water.
(b) Is this result reasonable for the three cases of would greater than, equal to, or less than W water?
(c) The apparent weight of the piece of steel in water of density 1000 kg/m' is 87.2% of its weight what percentage of its weight will its apparent weight be in formic acid (density 1220 kg/m3)?