A block of metal of mass 0.280 kg is heated to 158.0°C and dropped in a copper calorimeter of mass 0.250 kg that contains 0.120 kg of water at 30°C. The calorimeter and its contents are insulated from the environment and have a final temperature of 42.0°C upon reaching thermal equilibrium. Find the specific heat of the metal. Assume the specific heat of water is 4.190 x 103 J/(kg .K) and the specific heat of copper is 386 J/(kg .K). 3/(kg .K)