Answer:
they have diffrent part are shape
The answer is "At least 15".
Answer:
Even though they are the same temperature, the metal will feel colder than the wood because of the thermal conductivity of the metal, compared to the wood. Metal is a good conductor of heat, hence it sends away the heat. On the other hand, wood is a poor conductor of heat, hence releases the heat too slowly.
Lights in a big city or even a small town create light pollution, which makes it really hard to see the stars at night. If you put a telescope on a mountain far away, there would be a lot less light pollution. The sky would be much clearer and you could see many more stars
I believe it is the frequency, because when a oscillation occurs that is the starting point to determine when another wave is to come.
