Answer:
I'm not completely sure, but I believe the first and third of the three are mechanical.
Explanation:
Chemical potential isn't moving or about to go into motion. It can't be mechanical.
You can describe kinetic energy and the potential energy of motion to get your answer.
The answer to your question will be C. because they are very inexpensive and are readily available but they will eventually deplete because we use them faster than they can be produced we use what has been building up.
Potential energy is first transformed into kinetic energy as she pedals, then gravitational as she coasts down the hill.
