Hi, i'm not sure how to prove this(adsbygoogle = window.adsbygoogle || []).push({});

http://img402.imageshack.us/img402/5367/buoyancyq0wn.jpg [Broken]

I tried developing a bit but i'm stuck, can anyone point me in the right direction plz

thanks

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# Hi, i'm not sure how to prove this about buoyance

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