Calculate the buoyant force of air (density 1.20 kg/m3) on a spherical party balloon that has a radius of 17.0cm. If the rubber of the balloon itself has a mass of 2.00 g and the balloon is filled with helium (density 0.166 kg/m3), calculate the net upward force (the “lift”) that acts on it in air.

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Chapter9: Fluids And Solids
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Problem 23P: A spherical weather balloon is filled with hydrogen until its radius is 3.00 m. Its total mass...
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Calculate the buoyant force of air (density 1.20 kg/m3) on a spherical party balloon that has a radius of 17.0cm.

If the rubber of the balloon itself has a mass of 2.00 g and the balloon is filled with helium (density 0.166 kg/m3), calculate the net upward force (the “lift”) that acts on it in air.

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