The diagram shows the muzzle of a cannon located 40 m above the ground. When the cannon is fired, a ball leaves the muzzle with an initial horizontal speed of 150 m/s. 40 m
How long will the cannonball be in the air before it hits the ground?

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