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Posted by on Monday, July 9, 2012 at 10:02pm.

A 55 kg hiker starts at an elevation of 1600 m and climbs to the top of a 3400 m peak.
(a) What is the hiker's change in potential energy?

  • physics - , Tuesday, July 10, 2012 at 5:36am

    ΔPE=mgΔh=55•9.8•(3400-1600) =...

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