(a) Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3. kN (b) What is the net force acting on the balloon and its instruments after the balloon is released from the ground? kN (c) Why does the radius of the balloon tend to increase as it rises to higher altitude?
(a) Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3. kN (b) What is the net force acting on the balloon and its instruments after the balloon is released from the ground? kN (c) Why does the radius of the balloon tend to increase as it rises to higher altitude?
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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Question
A spherical weather balloon is filled with hydrogen until its radius is 3.10 m. Its total mass including the instruments it carries is 22.0 kg.
(a) Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3.
kN
(b) What is the net force acting on the balloon and its instruments after the balloon is released from the ground?
kN
(c) Why does the radius of the balloon tend to increase as it rises to higher altitude?
kN
(b) What is the net force acting on the balloon and its instruments after the balloon is released from the ground?
kN
(c) Why does the radius of the balloon tend to increase as it rises to higher altitude?
Because the external pressure decreases or increases with increasing altitude.
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