F=k*\frac{q1*q2}{r^2};\\ F=k*\frac{q^2}{r^2};\\ F*r^2=k*q^2;\\ q^2=\frac{F*r^2}{k};\\ q=\sqrt\frac{F*r^2}{k}};\\

ascor3337    1   07.04.2020 16:16    2