After absorbing 1.420 kJ of energy as heat the temperature of a 0.500-kg block of copper is 38 °C. What was its initial temperature? (The specific heat capacity of copper is 0.385 J/g · K.)

After absorbing 1.420 kJ of energy as heat the temperature of a 0.500-kg block of copper is 38 °C. What was its initial temperature? (The specific heat capacity of copper is 0.385 J/g · K.)