Suppose that a ball is dropped out of a plane and it accelerates towards the ground at approximately 9.8ms^-2. After 4.05s it hits the ground and is travelling at 40ms^-1. At what
speed was it travelling when it left the plane?

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