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Three point charges are arranged along the x axis. Charge q1= = -4.50nC is located at x=.25m and charge q2=3.00nC is at x=-0.330m. a positive charge q3 is located at origin.
A)What must the value of q3 be for the net force on this point charge to have magnitude 4.10microN
B)What is the direction of the net force on q3?
C)Where along the x-axis can q3 be placed and the net force on it be zero, other than the trivial answers of x=+infinity and x=-infinity

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