The correct answer should be pollutant
UV radiation pollutes the environment and that can lead to mutation in humans. It's a mutagen to humans, but a pollutant to the environment.
It will be potential because the roller coaster is going down so it’s not giving off energy to the roller coaster.
Answer:
The change of the momentum of the ball is 
Explanation:
We should find 
(1)with 
the initial momentum and 
the final momentum. Linear momentum is defined as 
, using that on (1):
(2)
It's important to note that momentum and velocity are vectors and direction matters, so if +x direction is the direction towards the wall and the -x direction away the wall 
and 
so (2) becomes:
Help to do what because there’s
Plenty of people
Storing music digitally requires less storage room than analog records or tapes. Digital music is easier to copy and the copies are the same as the original. The quality of the signal does not degrade over long periods of time.
