We know for electrostatic force
force
K0 = 9 * 109 N m2C-2
given q= 11.1 micro C = 11.1 * 10-6 C
Q=26.7 micro C =26.7* 10-6 C
F=1.50 N
put on formula above
1.50 = (9 * 109 *11.1 * 10-6 *26.7* 10-6) / r2
r2 = (9 * 109 *11.1 * 10-6 *26.7* 10-6) / 1.50
r=1.33 m
Distace between both is 1.33m
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