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The incredible lifting machine heat loss?

  1. Oct 16, 2005 #1
    the incredible lifting machine heat loss??

    While stumbling upon this website on the Incredible lifting machine,

    http://tigre.ucr.edu/dipen/phy11/heat.htm
    I was wondering what could be some of the reasons why the work down calculated as in mgh does not equal to the work done under the pv graph?

    I thought it should be the same? if not, that means there is heat loss by via what means???
     
  2. jcsd
  3. Oct 18, 2005 #2

    Andrew Mason

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    What suggests to you that the increase in potential mechanical energy of the system is not equal to [itex]\int Pdv[/itex]?

    AM
     
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