Quick I'll Mark it Brainliest Which of the following statements is true?

A. Burning air and gasoline in an engine changes chemical energy into mechanical energy. B. Friction causes molecules to vibrate more slowly. C. It is impossible to change mechanical energy into mechanical energy. D. Most heat energy is easily recovered and used for useful actions.

Question

Physics

Nelson Buck

6 April, 02:35

Quick I'll Mark it Brainliest Which of the following statements is true?

A. Burning air and gasoline in an engine changes chemical energy into mechanical energy. B. Friction causes molecules to vibrate more slowly. C. It is impossible to change mechanical energy into mechanical energy. D. Most heat energy is easily recovered and used for useful actions.

+3

Answers (1)

Know the Answer?

Tania Hall · Answer 1

A, B and C

Explanation:

The A, B and C look most probable. Heat energy flared to atmosphere might not be recovered. It could end up heating up the atmosphere.