Question

two point charges of + 5 ucr so place that the experience a force of 8.0 10 - 3 and they are they move apart so that the force is now 2.0 10 - 3 and the distance between them is now​

Answer 1

Answer:

2r

Explanation:

let initial and final dist be r and R

initial; k[5]²/r²=8 * 10^-3

final; k[5]²/R²=2 * 10^-3

now you should divide both equations and then take square root to get relation between r and R

DO NOT TRY TO CALCULATE AND THEN SUBSTITUTE .....

these questions are to be solved like this only... if u try to calculate it will take many years....LOL

Thank you