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- Gaya listrik
Q₁ = -2×10⁻⁴ C
Q₂ = 1,6×10⁻⁵ C
r = 9 cm = 9×10⁻² m
F = __ ?
Hk. Coulomb
F = k Q₁ Q₂ / r²
F = (9×10⁹ Nm²C⁻²) (-2×10⁻⁴ C) (1,6×10⁻⁵ C) / (9×10⁻² m)²
F = -¹⁶/₄₅ × 10⁴ ≈ -3,56 × 10⁴ N (tarik-menarik) ← jwb