| Topic: |
Science > Physics |
| User: |
"Allan Morrison" |
| Date: |
22 Jan 2005 12:59:19 PM |
| Object: |
piston in tube |
A piston in a frictionless tube containing a gas.
The piston accelerates from a stopped condition to a moderate
velocity and then decelerates moderately to a stop.
A "pulsewave" is sent down the tube.
When the piston is in the process of stopping what is the pressure at
the top of the piston?
Can you suggest any Google search words or sites.
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| User: "Old Man" |
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| Title: Re: piston in tube |
22 Jan 2005 07:20:55 PM |
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"Allan Morrison" <amorrisonca1@yahoo.ca> wrote in message
news:692c4f25.0501221059.23e92094@posting.google.com...
A piston in a frictionless tube containing a gas.
The piston accelerates from a stopped condition to a moderate
velocity and then decelerates moderately to a stop.
A "pulsewave" is sent down the tube.
When the piston is in the process of stopping what is the pressure at
the top of the piston?
pressure, P; force, F; piston area, A; piston mass, M; piston
position, x; piston speed, v; time, t; piston kinetic energy, T:
P = F / A = (m / A) * (dv / dt) = (m * v / A) * (dv / dx)
P = ( dT / dx ) / A
[Old Man]
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| User: "Uncle Al" |
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| Title: Re: piston in tube |
22 Jan 2005 03:15:29 PM |
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Allan Morrison wrote:
A piston in a frictionless tube containing a gas.
The piston accelerates from a stopped condition to a moderate
velocity and then decelerates moderately to a stop.
A "pulsewave" is sent down the tube.
When the piston is in the process of stopping what is the pressure at
the top of the piston?
Can you suggest any Google search words or sites.
Less. Inertia of the gas.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
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