SOLUTION: Found this info:
A barometer has an average height of 760 mm. (29.92 in.) of mercury and 14.7 lbs. of pressure per sq. in. at sea level.
My question is:
How is the 14.7 lb
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A barometer has an average height of 760 mm. (29.92 in.) of mercury and 14.7 lbs. of pressure per sq. in. at sea level.
My question is:
How is the 14.7 lb
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Question 1146836: Found this info:
A barometer has an average height of 760 mm. (29.92 in.) of mercury and 14.7 lbs. of pressure per sq. in. at sea level.
My question is:
How is the 14.7 lbs. determined? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Found this info:
A barometer has an average height of 760 mm. (29.92 in.) of mercury and 14.7 lbs. of pressure per sq. in. at sea level.
My question is:
How is the 14.7 lbs. determined?
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A column of Hg 29.92" tall and 1" by 1" is 29.92 cubic inches of Hg.
The density of Hg is ~13.6 gm/cc
---> 29.92 in * 13.6 gm/cm^3 * (1/454) pound/gm * (2.54 cm/in)^3
= 14.687 pounds/in^2
