In the figure, charge q subscript 1 space equals space 3.1 space cross times space 10 to the power of negative 6 end exponent space C is placed at the origin and charge q subscript 2 space equals space minus 8.7 space cross times space 10 to the power of negative 6 end exponent space C is placed on the x-axis at x space equals space minus 0.20 space m . Where along the x-axis can a third charge, Q space equals space minus 8.3 space mu C , be placed such that the resultant force on this third charge is zero