The central perpendicular axis through the ring is a z axis, with the origin at the center of the ring. what is the magnitude of the electric field due to the rod at (a) z ! 0 and (b) z ! & ? (c) in terms of r, at what positive value of z is that magnitude maximum? (d) if r ! 2.00 cm and q ! 4.00 mc, what is the maximum magnitude?

Perhaps seek some professional ? it isn't very asking some children who are just trying to find out answers to homework.also, it seems professional would actually be good to you. obviously it isn't going to magically fix your depression, but it'll do something. drugs, smoking weed, it won't do much, especially if your husband is against it. if you do it he'll dislike it. but talk to him, try and get him to listen to you, and figure everything out together, okay? there's a website- maybe it can offer some ?

The fuzzy edges of shadows are a result of  diffraction