As a 2.0-kg block travels around a 0.50-m radius circle it has an angular speed of 12 rad/s. the circle is parallel to the xy plane and is centered on the z axis, 0.75 m from the origin. the magnitude of its angular momentum around the origin is:

What happens to the light rays when they hit the specimen?

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

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.