Linear expansion physics homework

AI Thread Summary
The discussion centers on a physics homework problem involving a weather balloon's expansion under varying pressure and temperature conditions. The balloon is designed to reach a maximum radius of 26 meters at a specific altitude, but the student is unsure how to calculate its radius at lift-off when filled at atmospheric pressure and a higher temperature. Participants suggest that a gas law equation relating pressure (P), volume (V), and temperature (T) is necessary for solving the problem. The student expresses frustration over the lack of responses and seeks guidance on relevant equations. The conversation highlights the need for understanding gas laws in the context of thermal expansion and pressure changes.
Jake4
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Homework Statement



A weather balloon is designed to expand to a maximum radius of 26m hen in flight at its working altitude where the air pressure is .026 atm and the temperature is 229K

If the balloon is filled at atmospheric pressure and 434K, what is its radius at lift off?



Homework Equations





The Attempt at a Solution




We learned linear expansion in class, and all about pressures and changes in pressure. However I don't think we ever went over anything of this sort.

Thanks for the help guys!

exam tomorrow!
 
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no one? :(

Even just help with the relevant equations?
 


It seems you need a gas equation which relates P, V, and T. Seen any good ones lately?
 


SteamKing said:
It seems you need a gas equation which relates P, V, and T. Seen any good ones lately?

Too funny!:smile:
 
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