A helium balloon is inflated to 1.08 bars (gauge) and released. It has a diameter of 0.3 m and can be assumed to be a smooth sphere. The mass of the latex balloon material is 3 g. The surrounding air is at 20°C. (a) Considering that the helium is pressurized, what is the density of the helium? (b) What is the total weight of the balloon including the helium and latex? (c) What is the magnitude of the buoyancy force? (d) What is the fastest upward velocity of the balloon? Don't account for elevation affecting the
A helium balloon is inflated to 1.08 bars (gauge) and released. It has a diameter of 0.3 m and can be assumed to be a smooth sphere. The mass of the latex balloon material is 3 g. The surrounding air is at 20°C. (a) Considering that the helium is pressurized, what is the density of the helium? (b) What is the total weight of the balloon including the helium and latex? (c) What is the magnitude of the buoyancy force? (d) What is the fastest upward velocity of the balloon? Don't account for elevation affecting the
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.5P: Evaluate the dimensionless groups hcD/k,UD/, and cp/k for water, n-butyl alcohol, mercury, hydrogen,...
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