A friend made a device that can put exactly 90 nC (nC = 10-9 C) of charge on a tiny sphere. Your job is to use it to test Newtonian theory by stringing two tiny 5.0 g spheres on very light 1.0 m long threads. The spheres repel each other after each one is given the same positive charge and hang at rest at a specific angle θ. What angle, θ, would be predicted by Newtonian theory?