well my english isn't good and i do not know much about Physics,
but i really wonder now so if u guys don't mind i'll ask some!
the condition is....
*In Earth
(upstair(3rd))
---------------2nd------------------
~~~~~SOUNDWAVE~~~~~
---------------2nd------------------
(downstair(1st))
1.Soundwaves starts from exactly "middle" of the room. sound is loud, and long like big brass. so 3rd and 1st can hear it well enough.
2.the soundmaker... whatever it is, it isn't on the ground.
3.and those three rooms have same option. the walls, ceiling and ground. but without furnitures which can obstruct the wave.
so, in this simple condition, the problem is
"upstair, downstair, which stair is louder?"
my friend says its the upstair.
bcuz as in earth, theres a air resistance. so, soundwaves are affected by air resistance and it would be upstair.
and he said it maybe bit different by day or night.
but other peoples says no stair is louder,
its just same bcuz its not affected by gravity force simply.
and i'm just guessing its the downstair....
so tell me about your opinion, bcuz i really look forward to hear some lucid answer that'll help us all!![]()