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In the case of the vacuum tube and movable stopper, what force moves the stopper?
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In the case of the vacuum tube and movable stopper, what force moves the stopper?

User Ye Win
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3 votes
The impact of the air molecules on the outside of the stoppper to sooo
User Venson
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I'm pretty sure it's the impact of the air molecules on the outside of the stopper. They exert a net inward force, which is not resisted by anything on the other side.
User Glenn Slayden
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