Two point charges are placed on the x axis. (Figure 1)The first
charge, q1 = 8.00 nC , is placed a distance 16.0 m from the origin
along the positive x axis; the second charge, q2 = 6.00 nC , is
placed a distance 9.00 m from the origin along the negative x
axis.
An unknown additional charge q3 is now placed at point B,
located at coordinates (0 m, 15.0 m ). Find the magnitude and sign
of q3...