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    Work, Internal Energy, Heat

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    While running, 5.2 X 10^5 Joules of work is done by a jogger and 4.1 X 10^5 Joules of heat is lost by the jogger. What is the change DU in the jogger's internal energy?

    ___.___ X 10^5 Joules

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    Solution Preview

    Think of the internal energy of the Jogger as an internal reservoir of energy. When the system absorbes heat, the heat energy fills this reservoir. If the system delivers heat (loses heat) then the heat energy must come from this energy reservoir.

    The same goes for Work. When work is done on the system, the energy in the work fills the internal ...

    Solution Summary

    This solution provides step-by-step calculations and explanations for internal energy, work, and heat.