Question
Two balls at same temperature collide. What is conserved
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Answer
(d) When two balls at the same temprature collide, some fraction of their $K E$ appears in other forms of energy, like heat energy, second energy. Hence neither temparture, nor velocity or $K E$ will remain conserved. The only quantity which will remain conserved. The only quantity which will remain conserved. The only quantity which will remain conserved is their momentum.
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