Me. you! the sounds from a marching band travel (faster/slower) when the air temperature is 30 degrees c than when the air temperature is 20 degrees c? explain your answer. why can you hear a ringing telephone through a closed door?

The faster/slower one i think is faster because the colder the air, the closer the particals are, and for #2 it's because the door is condensed, and the atoms are closer, therefore meaning that the sound particals don't spread, like they would in air, they're more compact (meaning they're) easier to hear, or you just have a good listening ear.