I'm doing some practice problems because I have a final tomorrow. I ran across this problem and I haven't seen an equation or example like it in our textbook. If you could give me a little direction I'd appreciate it I probably won't have one like it on the test but I'd still like to figure it out.(adsbygoogle = window.adsbygoogle || []).push({});

A spherical aluminum ball of mass 1.26 kg contains an empty spherical cavity that is concentric with the ball. The ball just barely floats in water. Calculate (a) the outer radius of the ball and (b) the radius of the cavity.

Thanks

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# Homework Help: Fluid Mechanics

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