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Dik :
r' = 3r
Dit :
F' = ....?
Jwb :
F/F' = (r' / r)²
F/F' = (3r / r)²
F/F' = 9
9F' = F
F' = ¹/₉ F
jadi jawabannya A
diketahui:
F1 = F
r1 = r
r2 = 3 r
ditanya:
F2?
jawab:
GAYA COULOMB BERBANDING TERBALIK DENGAN KUADRAT JARAK ANTARA DUA MUATAN
F2 . r2² = F1 . r1²
F2 = F1 . r1² / r2²
F2 = F . r² / (3r)²
F2 = F . r² / 9r² (coret r²)
F2 = F / 9
F2 = 1/9 F
Jawabannya A