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Homework Help: Exam question

  1. Jun 19, 2003 #1
    i need help on this previous year exam question

    consider a nucleus with a diameter 4 X 10^-14m. calculate its longest and shortest diameters when its moving at speed v = 0.99c.

    thank you for any help
  2. jcsd
  3. Jun 19, 2003 #2
    It's a really simple problem, you just need the length contraction equation and then plug and chug.

    d = d'(1-(v/c)^2)^1/2

    Remember, this only affects the diameter in the direction of motion.
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