Ahelical gear has 30 teeth and a pitch diameter of 280 mm. gear module is 8 and pressure angle normal to tooth is 20°. the force normal to the tooth surface is 4500 n. determine the kw transmitted at 620 rpm.

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