Linear expansion physics homework

Click For Summary

Homework Help Overview

The problem involves a weather balloon's expansion, specifically calculating its radius at lift-off given different pressures and temperatures. The subject area pertains to thermodynamics and gas laws.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • The original poster attempts to relate linear expansion concepts to the behavior of gases under varying conditions. Some participants suggest the need for a gas equation that connects pressure, volume, and temperature.

Discussion Status

The discussion is ongoing, with participants exploring relevant equations and concepts. There is a sense of urgency from the original poster due to an impending exam, and some guidance has been offered regarding the need for gas laws.

Contextual Notes

The original poster indicates a lack of familiarity with the specific application of gas laws in this context, suggesting a potential gap in their understanding of the material covered in class.

Jake4
Messages
111
Reaction score
1

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!
 
Physics news on Phys.org


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:
 

Similar threads

Undergrad How Does the Balloon Analogy Explain the Expansion of the Universe?
  • · Replies 5 ·
Replies
5
Views
2K
Thermal coefficients of expansion
  • · Replies 5 ·
Replies
5
Views
2K
A water-bottle demonstration of atmospheric pressure
  • · Replies 6 ·
Replies
6
Views
2K
Calculate how high balloon rises before stopping
  • · Replies 8 ·
Replies
8
Views
12K
Troubleshooting a Weather Balloon Expansion Problem
  • · Replies 4 ·
Replies
4
Views
6K
Bizarre Atmospheric Physics Problem
  • · Replies 7 ·
Replies
7
Views
2K
Coeff. of Linear Exp. of glass from vol expansion of content
  • · Replies 6 ·
Replies
6
Views
8K
Bulk Modulus, Expansion Coeff. and compression of a liquid in a piston
  • · Replies 6 ·
Replies
6
Views
4K
High altitude balloon gas expansion
  • · Replies 3 ·
Replies
3
Views
7K
Thermal expansion of a liquid in a cylindrical container
  • · Replies 2 ·
Replies
2
Views
2K