0.600 kg of ice at -20.0 C is placed in an environment at +25.0 C, so that over time the ice warms up, melts, and the resulting water heats up to 25.0 C. The specific heat of water is Cu = 4.19 kJ/kg-C, the specific heat of ice is ci = 2.03 kJ/kg.C, and the latent heat of fusion of water is 334 k.J/kg. How much heat energy is absorbed by the ice/water as it comes up to room temperature