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Are Special Relativity variables transformable

  1. Oct 9, 2012 #1
    In the Equation
    Could the variables be subsituted for other similar energy problems like
    Would then the energy of something be written as
  2. jcsd
  3. Oct 9, 2012 #2
    Well, in principle yes, because these are laws of mathematics, not Special Relativity. But neither of the substitutions you have described are sound.
  4. Oct 10, 2012 #3


    Staff: Mentor

    You can do substitution, but what you are doing is not substitution.

    The only common variable between those two equations is E, so if you were to substitute one into the other you would get hλ=mc^2, which is valid.
  5. Oct 10, 2012 #4
    Cool, thanks both of you
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