Blades of an airplaneâs engine rotate with an initial speed is 40 rev/min. assuming constant angular acceleration of magnitude 8 rad/s^2 . (a) how long does it take for the blades to reach the angular speed ïf = 120 rev/ min?
(b)through how many radians does a blade turn during the time found in (a).
note : write down the detail process

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

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

How is science controlled by the governerment