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OpenStudy (anonymous):
you must design a hot-air balloon able to lift a 250 kg (including cargo and its own mass). if the average density of hot air inside the balloon is 1.09 kg/m^3 , and the surrounding air has density of 1.29 kg/m^3, what is the minimum volume of the balloon?
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OpenStudy (anonymous):
:\
OpenStudy (anonymous):
someone help just set up the problem for me? the equation needed would be greatly appretiated
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