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If the two equal charges separated with one unit (one meter) has a force of 20 N. What will be the force if the distance is increased by 2 units (two meters)? What is the value of the new force compared to the old?

  • Physics -

    1 + 2 = 3 m is the final separation

    R^2 increases by a factor of 9.

    The electrostatic repulsion force decreases by a factor of 9.

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