Physics, 04.04.2021 17:00 zahnjoey2470

What is the change in internal energy if 70 J of heat is added to a system and the system does 30 J of work on the surroundings? Use AU = Q-W.
A. -40 J
B. -100 J
C. 100 J
O D. 40 J

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What is the change in internal energy if 70 J of heat is added to a system and the system does 30 J...

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