In a running event, a sprinter does 4.8 × 105 J of work and her internal energy decreases by 7.5 × 105 J. (a) Determine the heat transferred between her body and surroundings during this event. (b) What does the sign of your answer to part (a) indicate?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 27P: A thermodynamic system undergoes a process in which its internal energy decreases by 500 J. Over the...
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In a running event, a sprinter does 4.8 × 105 J of work and her internal energy decreases by 7.5 × 105 J. (a) Determine the heat transferred between her body and surroundings during this event. (b) What does the sign of your answer to part (a) indicate?

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