Calculate the magnitude of the angular momentum of the earth in a circular orbit around the sun. Express your answer in kilogram-meters squared per second.

What was the first instrument to ever record an earthquake?

I’ve been stuck on this for a while

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