A cube of ice of 1.0 kg is dropped into 1.0 kg of water, and when equilibrium is arrived, there are 2.0 kg of ice at 0.0 degrees C. The initial temperature of the water was 0 degrees C. Determine the original temperature of the ice? (The Heat capacity of water: 4186 J/kgC; heat capacity of ice: 2093 J/kgC; and latent heat of fusion: 3.3 x 10^5 J/kg)