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A charge of $+2\text{ nC}$ and a second charge of $+8\text{ nC}$ are separated by a distance of $1\text{ meter}$. A third charge of $-4\text{ nC}$ is to be placed somewhere directly between the first two charges, at an equilibrium position that would lead to zero net electric force on the third charge.

Which of the following values indicate how far the $+2\text{ nC}$ charge is from this equilibrium position?


$20\text{ cm}$


$25\text{ cm}$


$33\text{ cm}$


$67\text{ cm}$

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