在x轴上的x = -1和x =1两点分别固定电荷量为- 4Q和+9Q的两个点电荷。那

在x轴上的x = -1和x =1两点分别固定电荷量为- 4Q和+9Q的两个点电荷。那么x轴上合场强为零的点的坐标为______________。

 

答案

-5m

解析:略

 

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