In a race, Usain Bolt speeds up from 0 m/s to 16 m/s at an acceleration rate of 4 m/s/s. How long does it take him to get up to speed?

explanation:

the masses of the objects and the distance between them

i think they are all correct

explanation:

they seem good

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                                         : )

their crystal patterns have been disrupted by stress