A steel ring with a 2.5000-in. inside diameter at 20.0^{\circ} \mathrm{C}20.0 ∘ C is to be warmed and slipped over a brass shaft with a 2.5020-in. outside diameter at 20.0^{\circ} \mathrm{C}20.0 ∘ C. (a) To what temperature should the ring be warmed?
(b) If the ring and the shaft together are cooled by some means such as liquid air, at what temperature will the ring just slip off the shaft?

Listed following are various physical situations that describe how light interacts with matter. match these to the appropriate category. 1) transmission? -visible light meets clear glass -visible light does not pass through a black wall -red light hits a red sweatshirt -light comes from your computer screen -cell phone signals pass through walls -blue light hits a red sweatshirt -white light hits a white piece of paper -light comes from a light bulb