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Q1 = -6x10⁻⁹ C
Q2 = -8x10⁻⁹ C
r = 4 cm = 4x10⁻² m
Ditanyakn : F ?
Dijwab :
F = k Q1Q2/r²
= (9x10⁹ x 6x10⁻⁹ x 8x10⁻⁹) / (4x10⁻²)²
= 432x10⁻⁹ / 16x10⁻⁴
= 29x10⁻⁵ N (C)