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Phtsics

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Two identical point charges are separated by a distance of 3.0 cm and they repel each other with a force of 4 X 10^-5 N. What is the new force if the distance between the point charges is doubled?

  • Physics -

    An inverse square law applies tp both gravitational and electrostatic forces.

    If you double the distance between two objects, the force is decreased by a factor of 1/2^2, which is 1/4

    Multiply that by the original force and you get 1 x 10^-5 N

  • *Physics -

    u spelled physics wrong

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