You are put on a wool sweater of approximately 1.5 kg, because it is around 30 °F  outside. The wool sweater was initially around room temperature of about 75 °F. It takes about 1.47 J of energy for the sweater to go from room temperature to the temperature outside. What is the specific heat capacity of the sweater? Please express the specific heat capacity in the unit of joules/kg.degrees Celsius

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