Physics

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If the distance between the spheres is halved,how will this affect the magnitude of the force?
And also this other question here:what does the fact that the force is repulsive tell you about the charges?...PLEASE HELP,MY TEACHER WILL PUNISH ME IF I DON'T DO TSHIS HOMEWORK.

  • Physics -

    k Q1 Q2 / d^2

    d2 = .5 d1

    so d2^2 = .25 d1^2

    1/.25 = 4 times

    like charges repel and for heavens sake READ THE BOOK !!!!

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