A clarinet creates a sound wave that has a wavelength of 1.27 m and a period of 0.00405 s. What is the speed of the sound wave?

Explanation:

v = 1.27 m / 0.00405 s = 314 m/s

where are the vectors ?

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )