Archimedes’ Principle (Problem 46)

(a) What is the density of a woman who floats in freshwater with $4.00$ of her volume above the surface? This could be measured by placing her in a tank with marks on the side to measure how much water she displaces when floating and when held under water (briefly). (b) What percent of her volume is above the surface when she floats in seawater? Select the answer to part (a).