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Homework Statement Suppose the magnitude of the proton charge differs from the magnitude of the electron charge by a mere 1 part in 109.What would be the force between two 1.7-mm-diameter copper spheres 1.7cm apart? Assume that each copper atom has an equal number of electrons and protons...

Homework Statement A -12 nC charge is located at the origin. What is the electric field at the position (x2,y2)=(−5.0cm,−5.0cm)? Write electric field vector in component form. Homework Equations The Attempt at a Solution Here, r^2 = (-0.05 - 0 )^2 meters squared. q=-12*10^-9 C. For the unit...