Suppose that a solid cube of some material floats motionless on the surface of an oil puddle at a service station with 77.5% of its volume submerged. The density of the oil is 921 kg/m. What is the density p of the cube's material? 3 P= kg/m Suppose that a solid cube of some material floats motionless on the surface of an oil puddle at a service station with 77.5% of its volume submerged. The density of the oil is 921 kg/m. What is the density p of the cube's material? 3 P= kg/m