Coulombs law

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Buzzin

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The E field between two charges 6 cm apart produces a force that is 90N. What is the force on the same charges when 2cm apart?

Is this just F= kq1q2 / r^2

90 N = k q1 q2 / .36m

90 N * 0.36m = k q1 q2

32.4 N*m = k q1 q2 / 0.2^2 = 810 N. This would technically make sense since force between charges INCREASES as distance decreases.

Units aren't making sense though. Something definitely off.

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