FIGURE 19-14 -Two Point Charges of Magnitude + 7.00 μC and -

FIGURE 19-14
-Two point charges of magnitude + 7.00 μC and - 9.00 μC are placed along the x-axis at x = 0 cm and x = 40.0 cm, respectively. Where must a third charge, q, be placed along the x-axis so that it does not experience any net force because of the other two charges?

A) 0.200 m
B) 2.99 m
C) - 0.187 m
D) - 2.99 m
E) 0.187 m