(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A right triangle is shown below. The charge on the right is unknown, but the electric field shown is only in the –x direction.

a. What is the unknown charge?

b. What is the magnitude of the electric field?

2. Relevant equations

3. The attempt at a solution

I have no idea how to start this problem. I have just been staring at it for 20 minutes. I would really appreciate any help.

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Finding an unknown charge

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