Which is an example of potential energy being transformed into kinetic energy? A rock sitting at the top of a hill rolling down the hill.
A rock sitting at the top of a hill without moving.
Arock at the bottom of a hill being pushed up the hill.
O A rock sitting at the bottom of a hill without moving.

The correct answer is a rock sitting at the bottom of a hill not moving.

Explanation:

This is correct because if you are still in school, your teacher would have drew you an l shaped graph representing a hill. At the top of the hill is gravitational potential energy, the middle is kinetic and the bottom is potential energy.

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