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a hot air balloon is an example of what type of system ? an open system ? a closed system ? or a isolated system ?

User Jeff Grigg
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2 Answers

9 votes
9 votes

Answer:

open system

Step-by-step explanation:

User Manojkumar
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20 votes
20 votes

Answer:

Also, hot air balloons are open systems—not closed, but again, the use of helium necessitates that the balloon be closed.

Step-by-step explanation:

User Yankee
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