aria buys acqua comssa. . .

[meccanicamg]

Sorry. . :

What's the answer?

Does it weigh more than one kg of iron or one kg of straw?

 

[biz]

Suppose we have a liquid inside a closed circuit, brought zero and pressure 1000 bar.the circuit does not admit losses (ideally).practical a hole.what happens?niente

Suppose we have a fluid to the gaseous sate inside a tank, pressure 1000 bar.practical a hole.what happens?

 

[PIETRO2002]

Does it weigh more than one kg of iron or one kg of straw?

Try to take a kg of iron in the head and then a kg of straw, after you tell me the difference!

 

[biz]

flow of a gaseous fluid: m^3 pa/s
we call into question a physicist or a chemist.. .

 

[New Rider]

... to empty the pipes?

They always recommended water because.... Let's see what answers you give me

greetings
♪

Hello also to empty tubing of transport of acids?

 

[Fulvio Romano]

Does it weigh more than one kg of iron or one kg of straw?

a kg of iron weighs more. I've always been convinced.
kg is a mass measure, so the mass of iron and straw are equal. the weight, that is the force that this mass exerts under the effect of gravitational attraction, is equal to the mass multiplied by the acceleration of gravity, less the thrust of archimedes of the fluid shifted from the volume. and since the straw kg moves much more air, its resulting weight will be lower.

I think it's goliardic, but it's strict enough, isn't it?

 

[Fulvio Romano]

There's a movie, which I don't remember, Robert de niro as a burglar.
to open a safe made a small hole up and filled it almost completely with water.
from the same hole inserted an explosive charge microscopic that generated considerable internal pressure. the safe made pofs and opened in two.. without a slight noise.
All this obviously has nothing to do with a... with the problem of @mir

The movie could be the score.
the principle is the same as the "peascal bottle" with which pascal explained the hydrostatic paradox. a thin but high column of water placed on a full barrel makes it burst for the enormous pressure.

 

[Vittorio]

Good morning, everyone.@mir If you want serious and intelligent answers, the question must be the same.
I didn't understand the meaning of your question.

 

[biz]

a kg of iron weighs more. I've always been convinced.
kg is a mass measure, so the mass of iron and straw are equal. the weight, that is the force that this mass exerts under the effect of gravitational attraction, is equal to the mass multiplied by the acceleration of gravity, less the thrust of archimedes of the fluid shifted from the volume. and since the straw kg moves much more air, its resulting weight will be lower.

I think it's goliardic, but it's strict enough, isn't it?

iron mass=1kg
straw mass=1kg
Earth gravity acceleration = about 9,807m/s^2
iron weight=1*9,807=9,807n
straw weight=1*9,807=9,807n
9,807=9,807 true

 

[mir]

...
sincerely I prefer to stay close (with some fear), to a liquid tank with an internal pressure of 300 bar rather than a gas tank at 300bar.
if the liquid tank is almost full.. air at 300 bar in its interior will be less and less than in a tank with only gas.

vabbè so many goliardic answers but little concreteness. . .
then it seems to me to understand that it is the volume that changes... apparently.

we put the tanks 10 liters:
10 liters of liquid at 300 bar ... remain 300 lt if you break the tank
10 liters of gas at 300 bar ... become much more if it breaks

so if I "dispose" compressed air in a plant and I am not careful .... booom
If I "dispose" water instead the boom I have the same but not catastrophic as above.

What do you say?
♪

 

[biz]

vabbè so many goliardic answers but little concreteness. . .
then it seems to me to understand that it is the volume that changes... apparently.

we put the tanks 10 liters:
10 liters of liquid at 300 bar ... remain 300 lt if you break the tank
10 liters of gas at 300 bar ... become much more if it breaks

so if I "dispose" compressed air in a plant and I am not careful .... booom
If I "dispose" water instead the boom I have the same but not catastrophic as above.

What do you say?
♪

before you shoot... the booom only does it in the gaseous state... in the liquid state you have a microscopic puff if you didn't take it

 

[mir]

Good morning, everyone.@mir If you want serious and intelligent answers, the question must be the same.
I didn't understand the meaning of your question.

the question is very clear...after you can do what you want

 

[mir]

before you shoot... the booom only does it in the gaseous state... in the liquid state you have a microscopic puff if you didn't take it

yeahhhh

 

[Vittorio]

we put the tanks 10 liters:
10 liters of liquid at 300 bar ... remain 300 lt if you break the tank

Look at the liters.. remains 10

 

[biz]

yeahhhh

I thought I was clear in this regard, implicitly.

 

[mir]

Look at the liters.. remains 10

according to me 10 liters of compressed air at 300 bar change if it goes in atmosphere.... and here explained the barrel

 

[Fulvio Romano]

iron mass=1kg
straw mass=1kg
Earth gravity acceleration = about 9,807m/s^2
iron weight=1*9,807=9,807n
straw weight=1*9,807=9,807n
9,807=9,807 true

You're neglecting the air force. When does a balloon full of helium weigh?

 

[meccanicamg]

You're neglecting the air force. When does a balloon full of helium weigh?

less 50 grams

 

[Fulvio Romano]

less 50 grams

and then a kg of straw must weigh less than one kg of iron.

 

[New Rider]

according to me 10 liters of compressed air at 300 bar change if it goes in atmosphere.... and here explained the barrel

10 liters of compressed air at 300 bar become 3000 liters at 1 bar. boyle-mariotte.