#1
It's c, chronological.
#2
It's d, "Stacks of books need to be shelved".
While the total energy<span> of a system is always conserved, the </span>kinetic energy<span> carried by the moving objects is not always conserved. In an inelastic collision, </span>energy<span> is </span>lost<span> to the environment, transferred into other forms such as heat.
Hope this helps.</span>
Answer:
c. Closing the valve stops the flow of water, but opening a switch stops the flow of charges.
Explanation:
I just took the test on edge. Hope this helps and sorry if I'm late :)