An electret is similar to a magnet, but rather than being permanently magnetized, it has a permanent electric dipole moment. Suppose a small electret with electric dipole moment 1.0 รร 10โ7โ7 CmCm is 25 cmcm from a small ball charged to ++ 40 nCnC, with the ball on the axis of the electric dipole.
Part A
What is the magnitude of the electric force on the ball?
Express your answer with the appropriate units.
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FF =
nothingnothing