A 5.25 kg piece of wood (with specific gravity of 0.50) just barely floats on water, a piece of solid lead, suspended from the bottom of the wood by a string. The density is 11.3 X 10^3 kg/m^3, and the density of water is 1.00 x 10 ^3 kg/m^3.
Find the buoyant force on the wood and lead, and the mass of the lead.