How to Calculate Force of Tension and Theta?

[temaire]

Homework Statement

Find the force of tension and $$\theta$$.

Homework Equations

$$F_e=\frac{kq_1q_2}{r^2}$$

$$F_g=mg$$

$$tan\theta=(\frac{opposite}{adjacent})$$

The Attempt at a Solution

Am I correct?

 

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Does anyone need me to explain the problem?

 

[temaire]

Is there a reason why no one is answering my question? Because if there is I will try to do something about it, whether it is to restate the problem, or explain my work.