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Charge to mass ratio?

  1. Jan 23, 2007 #1
    Charge and mass are two completely different things, how can you have the same ratio of the two? :uhh:
  2. jcsd
  3. Jan 23, 2007 #2


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  4. Jan 24, 2007 #3


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    the ratio is not a dimensionless number (unless you're using Natural units such as Planck units and then the measure of anything is actually a dimensionless number).

    when one considers the concept of speed, it's a ratio of length to time, likewise two completely different things. or density, a ratio of mass to volume, again two completely different kinds of quantity.
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