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Bantuu jawab yaa kaa:)
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  • F = KQ1Q2/R'2 
    R'2 = Kq1q2/F
    R'2 =( 9.10'9 )( 6.10'-5 )(5.10'-5)/(5.10'6)
    R'2 =  54.10'-7 m 
    R = akar 54.10'-7 m 

    Semoga membantu :) 

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