What is the difference between stretching a t shirt and stretching a rubber band?

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.

What is the frequency if a wave that pases a given pount 22 times in 2 seconds

What is the period of a wave traveling 5 m/s if its wavelength is 20 m/s