this post was submitted on 05 Nov 2023
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I don't understand the formula, but I understand Mr. Bean. +1
If you have two charges
q1andq2, you can get the force between themFby multiplying them with the coulomb constantK(approximately 9 × 10^9) and then dividing that by the distance between them squaredr^2.q1andq2cannot be negative. Sometimes you'll not be given a charge, and instead the problem will tell you that you have a proton or electron, both of them have the same charge (1.6 × 10^-19 C), but electrons have a negative charge.q1 and q2 can be negative. The force is the same as if they were positive because -1 x -1 = 1
But that if both are negative not one pos one neg like the previous commenter gave in their examples, so the true formula has an absolute value in the numerator: |q1Xq2|
No, but there should be a minus in the Coulomb formula