The class is about Electricity and Magnetism. The website wants exactly the perfect answer and in the same metric system units that are stated on the calculators that are on the picture for the question, if not, it'll mark it wrong.

0 d A flat slab of nonconducting material carries a uniform charge per unit volume p = 0.145 uC/m". The slab has thickness d = 9.5 cm which is much less than the slab's height or breadth. For points not near the edge of the slab, find the magnitude El of the electric field a. at x = 2.5 cm, IEI = N/C abc in(x) Ox10 Submit Reset Reset All .First figure out, from symmetry, the direction of the electric field and how it depends on (or is independent of) the coordinates x, y, and z. Note that the slab has the symmetry of a plane. .Since the symmetry is planar, you can use an approach very similar to the one used in finding the electric field due to a plane of charge. See Example 22-6 in Section 22-3 for details. b. and at x = 12.5 cm. or LEI= N/C abo sin(x) 1X10' Submit Reset Reset All