Some states have a traffic law requiring passengers under the age of 18 to wear a seat belt. Which statement is correct about the traffic law? a It is a scientific law. b It is a societal law. c It will always remain the same. d It describes a natural process.

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy