In a game of football outdoors on a cold day, a player
Chapter , Problem 5(choose chapter or problem)
In a game of football outdoors on a cold day, a player will begin to feel exhausted after using approximately 8.0 3 105 J of internal energy. (a) One player, dressed too lightly for the weather, has to leave the game after losing 6.8 3 105 J of heat. How much work has he done? (b) Another player, wearing clothes that off er better protection against heat loss, is able to remain in the game long enough to do 2.1 3 105 J of work. What is the magnitude of the heat that he has lost?
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