a charge of ).4 mc is at (-3, 0) meters and a charge of 0.9 mc is at ( 1, 0) meters. where on the x axis is the total magnitude of the E-field equal to 4 x 10^6 N/C?
a. -4.00 m, -2.136 m, -0.34 m, 2.45 m.
b. -2.665 m, 27 m.
c. -4.55 m, 2.45 m, -2.445 m, -1.22 m.
d. -4.00 m, 2.45 m.
e. -2.136 m, -0.34 m.