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post #1 of Old 04-20-2013 Thread Starter
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100 lb of Lead Vs 100 lb of concrete

I was in the marina yesterday and heard something from the staff that had me perplexed.
He said that under water lead weighs more than concrete if they are of the same weight.

Now; after some checking it appears he may be right. As a ball of lead would have less "displacement" than a similar weight of concrete that would be much larger size. Does the amount of surface area on a sunken mass play a factor in its level of buoyancy?

Is this correct?
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