1)We have a SEALED container (weight 1 ton) on a(i don't know the word in english... something to weight objects... a scale?).
2)Inside we have pigeons (weight 10 kilograms)sitting on the floor
3)They get scared, and start flying inside the ermetic container without touching any of the walls.
The total weight of the container stais the same(1 ton and 10 kilos) or drops(1 ton)?
Name:
Anonymous2007-09-06 15:41 ID:1OeXyCLB
>on a(i don't know the word in english... something to weight objects... a scale?).
Example:
Q. "Did harry potter get murdered?"
A. "correct, they did it on Mythbusters"
Name:
Anonymous2007-09-07 12:12 ID:rSrd8NVf
1 ton and 10 kilos
Name:
Anonymous2007-09-07 19:39 ID:tlerr8mx
actually his question was P \/ ¬P? which is always true.
think about wording your questions correctly, people.
Name:
Anonymous2007-09-08 4:47 ID:8JQXphTd
okay....
op here.
so the weight stais the same even if the pigeons fly of the floor?
In order to go up they must push themselfs down with 10 kilo force?.... .... what? i can't understand what i'm saing especialy in this language. I hate english
I think the measured weight will oscillate around 1 ton + 10 kg (assuming you can even measure with that kind of accuracy) (I'm defining this weight as the equilibrium weight).
a) When the pigeons first fly up, they have to push on the air with a force greater than their weight (otherwise, they can't accelerate up). Thus, the measured force will be greater than the equilibrium.
b) Their flapping is not instantaneous, and hence the air sent downwards is not continuous. Unless they're perfectly synchronized, there will be times when the air they send down is less than or greater than their weight.
c) If they decide to lower their elevation a little, then the opposite of a) occurs, and the measured force will be less than equilibrium.
If the pigeons are on a treadmill, will they still be able to fly?
Name:
Anonymous2007-09-14 2:52 ID:jEhQUZJA
I'd like to see a scale that can handle over a ton of pressure yet still measure the weight with an error margin smaller than 10kg... Also 10kg of pigeons... that's a lot of pigeons :P.