The x-component of the force:
F2Qx = 4.828 kQ2/l2
At each corner of a square of side l there are point charges of magnitude Q, 2Q, 3Q, and 4Q.
a. Determine the magnitude of the force on the charge 2Q. Express your answer in terms of Coulomb's constant k, Q, and l.
b. Determine the direction of the force on the charge 2Q. Express your answer using two significant figures.
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Based on our data, we think this problem is relevant for Professor McCormick's class at USF.