Two point charges, Q and q, lie on the x-axis and are separated by a distance of 1 meter as shown in the Figure. The charge Q lies at the origin and the net electric field (on 1 m E=0 2 m the x-axis) from the two charges is at x=0.75 m zero at the point x = 0.75 m. If the E=13 N/C x-component of the electric field from the two charges, Ex = 13 N/C, at the point x=2 m (on the x-axis), what is Q (in nanoC)?