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库仑引力
Coulomb attraction
- 我们昨天学习到,我们有库仑引力,之前你们学过的。
And we saw last day that we have a Coulombic force of attraction which you have seen before. - 当它们真正离得很近时，假设有一个带正负电的电荷，带有库仑引力。
So, when we get really close together, granted, there is a net positive negative charge with a Coulombic force of attraction. - 然后说势能，位能其实就是，由电子和原子核之间的库仑引力而形成的能量。
And then the potential energy, the energy is stored here due to the coulombic force of attraction between the electron and the nucleus.
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