It's true the net force is 0, but it doesn't mean you can ignore it.
所受的合力是 0,但是并不意味着你可以忽略它
If the two forces don't cancel, you have a net force.
如果这两个力没有抵消,便会有一个净作用力
I am going to say if that electron is to stay in its orbit, that is to say it doesn't flee the atom, it doesn't collapse under the nucleus then the sum of the forces on the electron must be zero No net force. And so that will be the sum of a dynamic force plus an electrostatic.
如果电子会保持在它的轨道上运行,既不脱离原子的话,它就不会由于原子核对它的吸引力而被瓦解掉,电子所受的合力一定为零,由于没有合力,所以电子所受力为动态力和静电力的总和。
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