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Homework Help: Time Dilation and aging Problem

  1. Mar 31, 2008 #1
    1. The problem statement, all variables and given/known data
    You fly 5000 km across the United States on an airliner at 250 m/s. You return two days later traveling at the same speed. How much less have you aged more then your friends at home.

    2. Relevant equations

    I think the time dilation equation is used:
    delta_t= delta_t'/ sqrt(1-beta^2) where beta= v/c

    3. The attempt at a solution

    I have the solution from the solution manual but i'd like to know how they got to the answer, 1.39×10−8 s.

    to find the delta t is the equation delta_t=delta_x/v used?

    the beta is (250m/s)/(3.0*10^(8) m/s )

    i keep getting 1.7 *10^-5 although the solution manual says this is incorrect.

    Any advice is appreciated!
  2. jcsd
  3. Nov 26, 2009 #2
    hi !

    I've been so desperate to find the solution manual for mastering physics..!

    Can you please tell me where you got it/?

    or if it is possible, I would really really appreciate it if you could can it to my email, which is


    Thank you very much
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