r=2 F=0.4 q1=q2=q=?
F=k*q*q/r²
q=r*√(F/k)=2*√(0.4/9*10^9)=1.33*10^-5 Кл
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r=2 F=0.4 q1=q2=q=?
F=k*q*q/r²
q=r*√(F/k)=2*√(0.4/9*10^9)=1.33*10^-5 Кл
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