Acharge of uniform linear density λ is distributed along a long, thin, nonconducting rod. the rod is coaxial with a long conducting cylindrical shell (inner radius r, outer radius r). the net charge on the shell is zero. (a) what is the magnitude of the electric field a distance d from the axis of the shell (where d > r)? what is the surface charge density on the (b) the inner and (c) outer surface of the shell? state your answers in terms of the given variables, using ε0 when necessary.

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.