The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 92 cm apart on the same axle. from the angular displacement 20.5 ◦ of the two bullet holes in the disks and the rotational speed 406 rev/min of the disks, we can determine the speed of the bullet. find the bullet speed for the following data: d = 90 cm, ? = 800 rev/min, and ? ? = 31.0

However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.

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