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Please help me!!
Two people playing a game of table tennis make up a closed system with 12,175 J of energy. At the beginning of the game the system has 9,875 J of ME and at the end it has 8,430 J of ME. How much of the total energy was transformed into thermal energy during the game?

Please help me Two people playing a game of table tennis make up a closed system with 12175 J of energy At the beginning of the game the system has 9875 J of ME class=