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a) Calculate the buoyant force on a 1.90–L helium balloon at sea level. b) Given the...

a) Calculate the buoyant force on a 1.90–L helium balloon at sea level. b) Given the mass of the rubber in the balloon is 1.50 g, what is the net vertical force on the balloon if it is let go? You can neglect the volume of the rubber.

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