Homework Help: physics

Posted by kim taylor on Sunday, September 18, 2011 at 6:05pm.

When point charges q1 = +5.4 錀 and q2 = +8.3 錀 are brought near each other, each experiences a repulsive force of magnitude 0.69 N. Determine the distance between the charges.

i used the eqution F=k(q1)(q2)/r^2 . i got 7.64E5 but it is not right .can you please help

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