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  1. G

    Electric Field of Nonconducting Solid Sphere

    Homework Statement A nonconducting solid sphere of radius 2.30 cm carries a uniformly distributed positive charge of 8.00×10-9 C. Calculate the magnitude of electric field at 1.60 cm away from the center of sphere Homework Equations E=kqr/R^3 The Attempt at a Solution...
  2. G

    Gravitational/electrostatic Equilibrium on a ramp

    Homework Statement A ball is at a known height on a certain ramp with an unknown angle theta. The ball has a known charge and a known mass. There is also a known charge at the bottom of the ramp. I am supposed to find the angle theta. Homework Equations F=(8.988x10^9)q1q2/d^2...