A hot, just-minted copper coin (c = 387 J/kg2°C) is placed in 101 kg of water to cool.
The water temperature changes by 8.39°C, and the temperature of the coin changes by 68°C.
What is the mass of the coin?
A. 9.17kg
B. 3547.17kg
C. 0.13kg
D. 0.19kg