... well... we can just assume it to be a orthoprism with length of 100m .
and emmm at north pole.
BTW, can you tell me why the altitude matters in this case ?
Thank you.~
Assume a rigid building(assume the building to be like a pyramid and its empty inside) to be vacuum.
If we open a hole(about r=.5m), then, how long will it take for the air to take up of the whole space apprximately?
Will, it's just curiosity because I found a little pump in a class room...