Recent content by pittiplatsch

Hi RedBelly, Thanks for your reply. I would say the forces acting on the particle are the coulomb forces exerted on it by the other charge. the corresponding equation is F = q1q2/r^2, but I'm not sure if this is the only force acting on it, because there must be another force that keeps it...

Homework Statement A particle of mass m and charge q can move along a vertical circle of radius R in the constant gravitational field of the earth. Another charge q is fixed to the lowest point of the circle. Find the equilibrium position and the frequency of small oscillations of the...