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Homework Help: Energy unit to kelvin, seconds, density, length

  1. Sep 29, 2015 #1
    1. The problem statement, all variables and given/known data
    Convert 1 ##Gev## to Kelvin, and convert ##GeV^{-1}## to meters, seconds, and convert ##GeV^4## to density ##(kg/ m^3).##

    2. Relevant equations
    natural units ##c=h=k_B=1##

    3. The attempt at a solution
    I know to convert energy to meters, I can use
    ##\lambda =hc/E##, I get the result ##GeV^{-1}=8.05*10^{14}m##
    But I don't know what other formulas I should use in order to complete the other conversions. Thanks for any hint!
     
  2. jcsd
  3. Oct 4, 2015 #2

    OmCheeto

    User Avatar
    Gold Member

    Wiki's entry on the "electron volt" lists all the conversion factors except for the density.
     
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