# classical mechanics

Buoyant Force of a Balloon
(9 points possible)

Helium balloons are used regularly in scientific research. A typical balloon would reach an altitude of 35.0 km with an air density of kg/m . At this altitude the helium in the balloon would expand to 540000.0 m . Find the buoyant force on the ballon.

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1. Wow ... 7 posts in under 4 minutes! I believe that's a record!

You must be taking a test or something. Please understand that tutors won't do your work for you.

You need to indicate exactly what you have done to solve each problem and where you're running into trouble.

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