3. Two point charges are placed .75 m apart. One point charge is 3 x 10°C and the other point charge is -8 x 10°C. What is the magnitude of the electric field?

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