A sound wave is a longitudinal wave caused by vibrations and carried through a substance. The particles of the substance, such as air particles, vibrate back and forth along the path that the sound waves travel. Sound is transmitted through the vibrations and collisions of the particles.
This could maybe help you with your answer.
Total thermal energy is the answer to your question.
I dont know but i know i dont lnow if this is true but the gravity is slowly going away every 4 year i dont know i think.
The answer is D. time really does pass more slowly in a rest frame of reference relative to a frame of reference that is moving
For number 11, you should say that there is more pollution and fossil fuels being burned.
