Sometimes you are able to hear your echo in rooms due to the acoustics of the structure. If you call out 'hello' in a room and hear the echo 10 seconds later, how large is the room?

Plz mark me brainliest i am 12 and i've never been marked brainliest.

Explanation:

Sound will echo in an empty room because if there is nothing to stop the sound from reflecting between hard surfaces, such as the walls, windows, ceiling, and floor . Since each surface is not a perfect reflector, some of the sound energy will be absorbed by the surface.

i think it's 35 meters

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas