tolong bantu jawab kk, untuk besok... mohon bantuannya kk plisss

Q₁ = 8.10⁻⁹ C
Q₂ = 6.10⁻⁹ C
R = 4 cm = 4.10⁻² m
F = .....

F = (k)(Q₁)(Q₂)/R²
F = (9.10⁹)(8.10⁻⁹)(6.10⁻⁹)/(4.10⁻²)²
   = 432.10⁻⁹/16.10⁻⁴
   = 27.10⁻⁵ N
atau
   = 2,7.10⁻⁴ N