A charge of 3.00 C is fixed at the center of a compass.
Chapter 18, Problem 19.42(choose chapter or problem)
A charge of 3.00 C is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.100 m. The charges on the circle are 4.00 C at the position due north and 5.00 C at the position due east. What are the magnitude and direction of the net electrostatic force acting on the charge at the center? Specify the direction relative to due east. *
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