
Concept explainers
To identify: Whether a helium-filled balloon rise in a huge, lazily rotating space habitat, carrying its atmosphere.

Answer to Problem 42A
Yes, it would.
Explanation of Solution
Introduction:
To float, surrounding air pressure is required.
If space habitat has its atmosphere where the air is stable then, a balloon with helium gas-filled will float. Now, to rise in such an atmosphere, it is required that surrounding pressure must change with altitude. Due to buoyant force, a helium-filled balloon will rise if surrounding pressure is decreasing with increasing altitude inside the space habitat.
Conclusion:
Thus, a helium-filled balloon will rise and float inside the space habitat with the atmosphere within.
Chapter 20 Solutions
Conceptual Physics: The High School Physics Program
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