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Ap Chem: dimensional Analysis

  1. May 28, 2010 #1
    1. The problem statement, all variables and given/known data[
    Average speed of helium at 25C is 1255m/s. Convert this speed to mph


    2. Relevant equations



    3. The attempt at a solution
    umm i tried to use this: 1255m/s (1mph/.477 m/s)
    thats all i have and i don;t know if I did this correct
     
  2. jcsd
  3. May 28, 2010 #2

    Borek

    User Avatar

    Staff: Mentor

    Doesn't look bad, but I doubt your teacher will be pleased. Try longer route, based on well known conversion factors - seconds to hour, meters to mile.

    --
    methods
     
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