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.

A very long solid nonconducting cylinder of radius R1 =4.5 cm is uniformly charged with a charge density 9 = 0.029 uC/m". It is surrounded by a concentric cylindrical tube of inner radius R2 = 8.6 cm and outer radius R3 = 17.7 cm, and it too carries a uniform charge density 9 = 0.029 uC/m". Determine the magnitude El of the electric field at a. r = 3.0 cm, LET = N/C abc sin(x) 1x10 Submit Reset Reset All .The cylinders are very long, so make the usual approximation that they are infinitely long. Hence the electric field points radially away from the axis and has cylindrical symmetry, for points far from the ends of the cylinders. .Draw an imaginary cylindrical Gaussian surface of radius r = 3.0 cm and length L, coaxial with the charged cylinders. How much charge is enclosed? The length L of your imaginary cylinder should cancel out of your calculation, making the electric field independent of your choice of L. b. r = 7.5 cm, IEl = N/C abc sin(x) 1x10' Submit Reset Reset Allc. r = 12.0 cm, IEl = N/C abc sIn(x Ox10 Submit Reset Reset All .Draw the usual Gaussian cylinder of radius r = 12.0 cm. How much charge is enclosed? .To find the volume of a cylindrical shell of inner radius a and outer radius b, just subtract the volume of a cylinder of radius a from that of a cylinder of radius b. d. and r = 20.0 cm. IEl = N/C abc sin(x 0x10 Submit Reset Reset All