在一般情况下，库仑定律是电荷的产物，和q2之间的距离就是半径r，q1q2，divided，by，their，separation，，which，is，r。,为了使最后算出的合理的静电单位和力学单位,我们需要在这儿引入一个常数。
So, in the most general form, Coulomb's law is the product of the charge, q1 And, in order to rationalize electrostatic units with mechanical units, we have to put a factor in here.
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