John Ninomiya is floating in sky with a cluster of helium-filled balloons. Each balloon has a radius of 1 m, density of air at that altitude is 1.13 kg/m^3, his body weight is 70 kg. How many balloons are needed? Ignore the weight of the balloons

John Ninomiya is floating in sky with a cluster of helium-filled balloons. Each balloon has a radius of 1 m, density of air at that altitude is 1.13 kg/m^3, his body weight is 70 kg. How many balloons are needed? Ignore the weight of the balloons

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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