An electron is placed on a line connecting two fixed point charges of equal charge but opposite sign. The distance between the charges is 30.0 cm and the charge of each is 4.50 pC.
(a) Compute the force on the electron at 5.0-cm intervals starting 5.0 cm from the leftmost charge and ending 5.0 cm from the rightmost charge.
(b) Plot the net force versus electron location using your computed values. From the plot, can you make an educated guess as to where the electron feels the least force?