The 6-lb particle is subjected to the action of its weight and forces f1 ={2i + 6j - 2tk} lb, f2 = {t2i - 4tj - 1k} lb, and f3 = {-2ti} lb, where t is in seconds. determine the distance(ft) the ball is from the origin 2 s after being released from rest.

Which is a substance that can be separated by physical means and is not the same throughout

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

Is the vertical component of velocity ever zero?