A sphere balloon with 30 cm in radius is released from the ground, 300 K and 101.325 kPa. The balloon is charged with Helium at 1 atm (absolute), thus creating buoyant force for balloon to rise. The radius of the balloon does not change, and the mass of balloon is 0.1 kg, except the mass of Helium inside. The atmosphere can be assumed to be isothermal at 300 K with air (molecular weight = 29 kg/kmol).
A sphere balloon with 30 cm in radius is released from the ground, 300 K and 101.325 kPa. The balloon is charged with Helium at 1 atm (absolute), thus creating buoyant force for balloon to rise. The radius of the balloon does not change, and the mass of balloon is 0.1 kg, except the mass of Helium inside. The atmosphere can be assumed to be isothermal at 300 K with air (molecular weight = 29 kg/kmol).
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:c. Based on the analysis above, what is the terminal height of the balloon, where the
velocity of balloon becomes zero?
Transcribed Image Text:A sphere balloon with 30 cm in radius is released from the ground, 300 K and 101.325 kPa.
The balloon is charged with Helium at 1 atm (absolute), thus creating buoyant force for
balloon to rise. The radius of the balloon does not change, and the mass of balloon is 0.1
kg, except the mass of Helium inside. The atmosphere can be assumed to be isothermal at
300 K with air (molecular weight = 29 kg/kmol).
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