Buoyancy problem, please check my work :) Can you check my work here? A crown is weighed in air and submerged in water. The scale reads 7.84 N in air and 6.86 N in water. find (a) the buoyant force (b) the volume of the crown (c) the density of the crown (d) is the crown made of gold? (a) 7.84-6.86=.98 N (b) Bouyant force=Volume(submerged object)*density(liquid) *gravity so .98=v*1000*9.8 V=.0001 m^3 (=.1 cm^3) (c) Density Object= (Weight object/Bouyant Force)*Density Liquid p=(7.84/.98)1000 ;p=8000 kg/m^3 (d) I'm not sure the density of gold, I think its more than double this density though. So No, the crown is not made of Gold. Thanks for any help!!!