A very large nonconducting plate lying in the xy-plane carries a charge per unit area of 8s. A second such plate located at z = 1.00 cm and oriented parallel to the xy-plane carries a charge per unit area of -6s. Find the electric field for the following.
(a) z < 0
(b) 0 < z < 1.00 cm
(c) z > 1.00 cm