Recent content by Cory

well yea, but then it's the same as Fe = Fg*tan12 which doesn't work. Maybe I should use the length of the rope?

I seem to still be missing radius

so find Fe with mg*tan12 (which is: 0.20830543) then use that to solve for q in Fe =k*q^2*r^2? why does it change from divided by r^2 to multiplied?

I don't think so.. I'm trying to find the initial charge on A

Sorry, I edited my last post, I typed the wrong thing. Should I still try Fe = ft*sin12? I don't really understand

I can't seem to understand how to solve the FBD for fe. I tried using tan(12) = Fe .....m*g but that doesn't seem to work, and I am really just not sure how to go about this.

I did with electric force outward, Force of tension angled at 12degrees, and force of gravity. Then I rearranged them to make a triangle. ie ^ .\ =Ft ...\ ...\ ...0---->Fe ...| ...| Fg ...\/

How do I calculate Electric forces when objects are dangling from insulated wire. For example Neutral metal sphere A, of mass 0.10kg hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge -q, is brough into contact with the sphere A. The spheres repel and stelle down...

Sorry, I posted this in the wrong section, it is now in the right section with the formula.

How do I calculate Electric forces when objects are dangling from insulated wire. For example Neutral metal sphere A, of mass 0.10kg hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge -q, is brough into contact with the sphere A. The spheres repel and stelle...