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July 31, 2014

Homework Help: Physics

Posted by Sally on Monday, November 26, 2012 at 4:25pm.

n a running event, a sprinter does 5.5 105 J of work and her internal energy decreases by 8.8 105 J.

(a) Determine the heat transferred between her body and surroundings during this event. _____J

(b) What does the sign of your answer to part (a) indicate? select one
(i)There is no heat transferred between the sprinter and the environment.
ii) Energy is transferred from the sprinter to the environment by heat.
iii)Energy is transferred from the environment to the sprinter by heat.

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