in air an object weighs 15N. when immersed in water it weighg 12. when immersed in another liquid it weighs 13N determine the density of the object and that of the liquid
the object displaces 3 N of water and 2 N of other
the volume is constant, so the density of other is 2/3 the density of water
the weight of the object is five times the weight of the water it displaces
... so the density of the object is five times the density of water