The answer is D. As the ambulance gets closer, the sound waves are compressed relative to the person; so the frequency increases.
Answer:
In the 1980s, astronomers turned to multiverse theory to explain the “luckily small” amount of dark energy in our universe. According to cosmologist's theories, this small amount of dark energy appeared to enable our universe to host life, while most universes in the multiverse couldn't.
Explanation:
Types of energy transfer involve
Conduction, Convection, Evaporation,and Condensation <span />
Answer: I have no idea either i need help aswell
Explanation:
The phase is called 3rd quarter.
Hope this helps:)
