A spherical helium balloon of 22 ft in diameter is at ambient T and P, 60 F and 14.69 psia. How much helium does it contain? 2.It can lift a total mass that equals the mass of displaced atmospheric air. How much mass of the balloon fabric and cage can then be lifted? ( R of Helium = 386 ft-lbf/lb degR , R of air 53.34 ft-lbf/lb degR )
A spherical helium balloon of 22 ft in diameter is at ambient T and P, 60 F and 14.69 psia. How much helium does it contain? 2.It can lift a total mass that equals the mass of displaced atmospheric air. How much mass of the balloon fabric and cage can then be lifted? ( R of Helium = 386 ft-lbf/lb degR , R of air 53.34 ft-lbf/lb degR )
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter2: Matter And Energy
Section: Chapter Questions
Problem 29RQ: If 3000 ft3 of air is crossing an evaporator coil and iscooled from 75F to 55F, what would be the...
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. A spherical helium balloon of 22 ft in diameter is at ambient T and P, 60 F and 14.69 psia.
- How much helium does it contain?
2.It can lift a total mass that equals the mass of displaced atmospheric air. How much mass of the balloon fabric and cage can then be lifted? ( R of Helium = 386 ft-lbf/lb degR , R of air 53.34 ft-lbf/lb degR )
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