Copper has a density of 8.940 x 103 kg/m at 0C and an average linear expansion coefficient of 1.600 x 10-5(ec-1), A 90.00 kg block of copper at 0C is heated to 85.00C. (a) What is the density (in kg/m) of the copper block at 85.00C? (Round your answer to at least four significant figures.) kg/m (b) What is the mass (in kg) of the copper block at 85.00C? kg