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April 21, 2014

Homework Help: physics

Posted by Helen on Saturday, December 15, 2012 at 9:28pm.

an empty rubber balloon has mass 0.0120kg, the balloon is filled with helium of density 0.181 kg/m^3. the balloon is spherical w/ radius 0.500m. if the balloon is ties to a vertical string, what is thw tension in the string?
density of air 1.29 kg/m^3

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