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Homework Help: Modern physics

  1. Apr 28, 2004 #1
    we find ourselves in a new universe where the rules of relativity still are valid, but aplace in which physical constants may have new values. For instance, in this new universe, a 1 kg mass is now equivalent to 4x10^15 joules. In this new universe, at what approximate speed in M/sec will light travel in a vacuum?
  2. jcsd
  3. Apr 29, 2004 #2

    Doc Al

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    Staff: Mentor


    I presume they want you to deduce from Einstein's E=mc2, what the new speed of light (c) must be. Give it a try.
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