Answer:
543.04 m
Step-by-step explanation:
The 2 charges are:
q1 = q2 = 5 C
Distance apart is r
Force; F = 762149 N
We will use the formula from coulumbs law;
F = kq1•q2/r²
Where k is coulumbs constant = 8.99 × 10^(9) N.m²/C²
Making r the subject, we have:
r = √((8.99 × 10^(9) × 5 × 5)/762149)
r ≈ 543.04 m