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Finding the mass of a object without a scale or density

  1. Feb 19, 2008 #1
    1. The problem statement, all variables and given/known data
    I must determine the mass of 2 objects with lab equipment and 50g mass pieces a scale may not be used as well as density.
    2. Relevant equations
    have no idea


    3. The attempt at a solution
    have no idea
     
  2. jcsd
  3. Feb 19, 2008 #2

    Pythagorean

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    Gold Member

    do you at least have some entertaining thoughts or shots-in-the-dark?

    I have somewhat a of a purist physics professor, who (out of the class room) argues that mass isn't really a fundamental unit... only length and time are, and other so-called 'fundamental units' like mass can be expressed in terms of length and time. (Hint: in the case of mass, you won't need time)

    You're lucky enough to have a standard (a 50 g wait) to be your basis ratio of lengths.
     
  4. Feb 23, 2008 #3
    The only tring I could think of was Newtons 3 Laws , becuase that is what we are busy with in class
     
  5. Feb 23, 2008 #4
    I think I would table this whole project rather than force an answer?
    :rolleyes:
     
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