Chemistry, 02.02.2022 14:00 hectorgonzalejr333

A laboratory animal exercises on a treadmill, which through pulleys, raises a mass of 200 g through 1.55 m of height. At the same time, the animal lost 5.0 J of energy as heat. Disregarding all other losses and regarding the animal as a closed system, what is its change in internal energy?

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