College Physics 2

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a very small ball has a mass of 5 x 10^-3 kg and a charge of 4x10^-6C(microC). What magnitude electric field directed upwad will balance the weight of the ball?

  • College Physics 2 -

    force electric=mg

    Eq=mg

    E=mg/q

  • College Physics 2 -

    1.2 x 10^4 N/C

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