Helium D= 12 m Pair PHe =Pair m = 170 kg
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
Chapter7: Tubing And Piping
Section: Chapter Questions
Problem 2RQ: The size of 1/2 in. would refer to the ______regard to copper tubing used in plumbing and heating....
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Balloons are often filled with helium gas because it weighs only about one-seventh of what air weighs under identical conditions. The buoyancy force, which can be expressed as Fb = ρairgVballoon, will push the balloon upward. If the balloon has a diameter of 12 m and carries two people, 85 kg each, determine the acceleration of the balloon when it is first released. Assume the density of air is ρ = 1.16 kg/m3 , and neglect the weight of the ropes and the cage.
Transcribed Image Text:Helium
D= 12 m
Pair
PHe =Pair
m = 170 kg
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