All of the air is removed from a sealed metal can. After the air has been removed, the can looks as if it were crushed. Why?
2007-03-01 00:57:39 · 3 answers · asked by anarchygirl 1 in Education & Reference ➔ Homework Help
The vacuumed can has had it's interior pressure removed leaving the exterior to compress.
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http://www.physics.umn.edu/outreach/pforce/airpressure.html
Air Pressure
Vocabulary
air pressure: Pressure exerted by the weight of air on an object in that air. There will be discussion about this when we describe the reason for the plunger being held onto a piece of clear plexiglass, when the rubber playground softball base is used to lift a chair using air pressure, when we use the Magdeburg disks being held together by air pressure and when we crush a 55-gallon drum using air pressure.
2007-03-01 02:02:41 · answer #1 · answered by LucySD 7 · 0⤊ 0⤋
Removing the air from a sealed can lowers the air pressure inside the can. The more air that is removed, the lower the air pressure inside the can. Since the pressure of the air outside the can is higher, the can starts to "cave in".
2007-03-01 09:04:22 · answer #2 · answered by K C 1 · 1⤊ 0⤋
The pressure outside the can is greater than the pressure inside the can
2007-03-01 09:03:04 · answer #3 · answered by Anonymous · 0⤊ 0⤋