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|dw:1443080246357:dw|

I think you are right! ;/\

@The_Beast_Eli The only issue I'm having is that I don't know the values of a or H..

Equilibrium means
\[\Sigma F _{x}=0\]
so \[\Sigma F _{x}=Tsin \theta-F _{e}=0\]

\[\Sigma F _{y}=0\]
\[\Sigma F _{y}=Tcos \theta-mg=0\]

\[\Sigma F _{x}=Tsin \theta=F _{e}\]
and
\[\Sigma F _{y}=Tcos \theta=mg\]

Divide both
\[\frac{ Tsin \theta }{ Tcos \theta}=\frac{ F _{e} }{ mg }\]

Its pretty simple.
Just ignore the article and information at the top.

|dw:1443157685426:dw|

|dw:1443157805407:dw|

Electric force should be pointing at those 3 arrows.

|dw:1443158106792:dw|

Wow, I got tricked so hard by my professor for including that article, haha. Thank you!!

No problem!
Good luck with the rest.