Aroller coaster reaches its maximum kinetic energy when it?
1.} reaches the bottom of a hill.
2.} begins rolling down a hill.
3.}is sitting at the top of a hill.
4.}is starting up a hill.

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

i think that the answer is c

yes

ya te ayud espera