Posted in Physics

As 390-g of hot milk cools in a mug, it transfers 30,000 J of heat to the environment. How does the temperature of the milk change? (cmilk = 3.9 J/g°C) a) It increases by 77°C. b) It decreases by 77°C. c) It increases by 20°C. d) It decreases by 20°C.


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