Question

Tolong no. 17 pakai cara,,,,

Answer 1

Verified answer

Diketahui :
q1 = +50 mikroCoulomb = 50 x 10^-6 C = 5 x 10^-5 C
q2 = +30 mikroCoulomb = 30 x 10^-6 C = 3 x 10^-5 C
r = 30 cm = 3 x 10^-1 m
k = 9 x 10^9 Nm²/C²


Ditanyakan : gaya coulomb (F)


Jawab :
F = k . q1 . q2 / r²
F = (9 x 10^9) (5 x 10^-5) (3 x 10^-5) / (3 x 10^-1)²
F = (9 x 10^9) (5 x 10^-5) (3 x 10^-5) / (9 x 10^-2)
F = 15 x 10^1
F = 150 Newton

Jadi jawabannya : B