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B Energy density versus pressure?

  1. Nov 6, 2017 #1
    If i have Energy Density (U) -> U.Area= F but F.Area = pressure (p) but p must be U . i'm confused! In which cases we can say that energy density is pressure???
     
    Last edited by a moderator: Nov 6, 2017
  2. jcsd
  3. Nov 6, 2017 #2

    A.T.

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