If there were a large hollow pipe up 200 miles would the pressure in it decrease or stay the same?

Question

If there were a large hollow pipe up 200 miles would the pressure in it decrease or stay the same?

Answer 1

it would stay the same. Its like a water hose if you feel the pressure at the faucet and at the hose its the same. The only way it would decrease is if the water pressure was really low or the pipe was larger then what the pressure could cover.  

Answer 2

I can't remember what the equation is called but there is definitely an inverse relationship between pressure and distance in a tube. An example of this is that the veins in the body are far thinner and less flexible than arteries. They don't have to handle the same pressures as the arteries because they are farther from the heart (veins bring blood back to the heart).

Answer 3

If the pipe was vertical, then the pressure would be greater at the bottom than at the top.  That's because the weight of the gas or liquid in the pipe will be greatest at the bottom, ie, the weight of all the gas or liquid will be exerted at the bottom of the pipe.

If the pipe was open at both ends or one end, and the bottom of the vertical pipe was at sea level, then the pressure of air at sea level would be sea level pressure (760 mm of Hg or 1 atmosphere or 14.7 psi), and the pressure would decrease toward the top to essentially zero at 200 miles.  The pressure would change slightly with barometric pressure changes.  If the pipe was sealed at both ends, then the pressure would definitely decrease with altitude as well, although it would be constant over time.

You can simulate this by swimming to the bottom of a swimming pool.  A swimming pool has the same characteristics as a pipe, and we alll know that pressure increases the deeper you go.  It doesn't matter if its a gas or a liquid, but the liquid makes it more obvious.

Answer 4

stay the same. the pressure outside changes, but pressure inside would stay the same. if the pipe was airtight anyways.

like if you hold your breath and go underwater deep you dont get the bends, because the pressure is the same in your body.

make it a good day