Could someone PLEASE help me with these physics questions?

(3) (10 pts) A huge (essentially innite) horizontal nonconducting sheet 10.00111, thick has charge uniformly Spread over both faces. The upper face carries 95 710/7112 while the lower face carries 25 TLC/772,2. What is the magnitude of the electric eld at a point within the sheet 2.00 cm below the upper face? (4) (14 pts.) A small circular 100p of wire with radius r = 1 cm is placed at the center of a large circular 100p of wire with radius R 2 100m. The two loops lie in the same plane, and 9'"