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Coulomb measured the deflection of sphere A when spheres A and B had equal charges and were a distance d apart. He then made the charge on B one-third the charge on A. How far apart would the two spheres then have had to be for A to have had the same deflection that it had before?

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3 answers
  1. (9.0e^9)(1)(1)/(1)^2 = 9.0e^9
    (9.0e^9)(1/4)(1) = 2.25e^9
    2.25e^9/(1/2)^2 = 9.0e^9
    1/2*d

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  2. Very far apart

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  3. not 1/2

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