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A helium balloon (in the shape of a sphere) has radius 7.30 m . For the...

A helium balloon (in the shape of a sphere) has radius 7.30 m . For the density of air, please use 1.29 kg/m^3, and for Helium, use .179 kg/m^3 How much additional mass (payload) could this balloon lift? You should assume the balloon's skin, plus other parts of the balloon's structure have a total mass of 950 kg . Note however that this number does NOT yet include the mass of the helium filling the balloon, which you will need to account for!

Express mass in kg

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