Two 3.0 g spheres are suspended by 9.0 cm long light strings. A uniform electric field is applied in the x direction. If the spheres have charges of -4.X10-8 C(coulomb) and +4.X10-8 C, determine the electric field intensity that enables the spheres to be in equilibrium at θ = 11°.
So the units to the answer should be Newtons/Coulomb
The Attempt at a Solution
I am unclear on how to get the answer because i feel overwhelmed by formulas I can use. I've tried and the answer is definitely not 304,843.5. You see what I mean?
I would appreciate some ideas.