Optical engineers need to know the cone of acceptance of an optical fiber. this is the maximum angle that an entering light ray can make with the axis of the fiber if it is to be guided down the fiber. what is the cone of acceptance of an optical fiber for which the index of refraction of the core is 1.55 while that of the cladding is 1.45? you can model the fiber as a cylinder with a flat entrance face.

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 density of the block of iron is lees than the density of mercury but the density of the block of iron is greater than the density of water

A,d, and e on edgunuity

Despite their crazy structure, human bones are surprisingly good!