How much does buoyancy in air affect the weight of a person?

Subject: How much does buoyancy in air affect the weight of a person?

Date: Sun Jan 3 07:49:31 2010
Posted by aaron
Grade level: 10-12 School: WAB
City: Beijing State/Province: No state entered. Country: China
Area of science: Physics
ID: 1262530171.Ph

Message:


When a person goes from sea level up a mountain his weight goes down because he is farther from the 
center of mass of earth. But, since air pressure is lower, there is less buoyancy in air, so this adds to the 
measured weight. What are the relative sizes of these effects? And, how much does buoyancy lessen the 
weight of a person at sea level?

Re: How much does buoyancy in air affect the weight of a person?

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