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Physics 9 Online
OpenStudy (anonymous):

The vacuum at the top of a barometer contributes: 101.3 kPa no pressure 760mm 14.7 lbs per sq. inch

OpenStudy (anonymous):

It is 760 mm (atmospheric pressure).

OpenStudy (anonymous):

It's a vacuum. Therefore it is no pressure. Also, all the other answers are atmospheric pressure at sea level.

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