I can't really understand Archimedes principle..I mean i know how it works in water but i am totally clueless when it comes to air question.Here is a question:(adsbygoogle = window.adsbygoogle || []).push({});

A balloon having a mass of 120 kg and volume of 400mcube is filled with helium gas of density 0.18kg m to the power of -3.The density of the surrounding air is 1.28kg m to the power of -3.What is the maximum load that can be lifted up by the balloon?Answer:320kg

How do you solve this question?Also can someone please tell me how to count air question..My exam is a few days away

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# Homework Help: Archimeded problem

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