I need help to solve these Physics III exercises by applying Gauss's Law and loads on conductors, with their corresponding analyzes and graphs, please

1. A solid metallic sphere of radius 0.450 m has a net charge of 0.250 nC. Determine the magnitude of the electric field (a) at a point 0.100 m outside the surface and (b) at a point inside the sphere 0.100 m below the surface.

1. The electric field 0.400 m from a very long uniform line of charge is 840 N>C. How much charge is contained in a 2.00-cm section of the line?