Two positive point charges, each 18 μC , lie along the x-axis at x = -0.15 m and x = +0.15 m.
A) Find the electric field at the origin (0, 0).
B) Find the electric field at the point (0, 0.21 m ) on the y-axis.
(Express your answers using two significant figures. Enter the x and y components of the field separated by a comma.)