Question: Two particles with electric charges Q and -3Q are separated by a distance of 1.2 m. (a) If Q = 4.5 C, what is the

Two particles with electric charges Q and -3Q are separated by a distance of 1.2 m. 

(a) If Q = 4.5 C, what is the electric force between the two particles? 

(b) If Q = -4.5 C, how does the answer change?

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