These create an electrostatic charge on droplets to enhance the way they stick to foliage, although some farmers think it works better on cars than plants.

它们会在水滴上产生静电荷，以增强它们粘附在叶子上的方式，尽管一些农民认为它在汽车上比在植物上效果更好。

Yeah, Coulomb's law gives the electrostatic force  as the Coulomb constant times charge 1 times charge 2 all divided by the square of the distance  between centers of charge all times unit vector r.

是的，库仑定律给出的静电力等于库仑常数乘以电荷 1 乘以电荷 2 除以电荷中心之间距离的平方乘以单位矢量 r。