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Two pellets, each with a charge of 0.80 microcoulomb (8.0×10−7 C), are located 4.0 cm (4.0×10−2 m) apart. Find the electric force between them.

  • physics -

    Coulomb’s law
    F = k•q1•q2/r^2 =k•q^2/r^2 ,
    k = 9•10^9 N•m^2/C

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    .oo25

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