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Physics 14 Online
OpenStudy (followthefez):

Buoyancy Question: A spherical balloon has a radius of 7.35m and is filled with helium (density 0.179Pa). How large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of 930kg? Neglect the buoyant force on the cargo volume itself.

OpenStudy (anonymous):

well, this should be helpful http://www.youtube.com/watch?v=g6aErhwFXsg Now what is the weight of air that the baloon is replacing? thats the magnitude of the Buoyancy force pulling up on the ballon.

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