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Re: mathmatician needed
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Posted by perry in calif. on May 03, 2007 at 14:14:33 from (67.121.124.156):
In Reply to: mathmatician needed posted by mark on May 03, 2007 at 13:34:08:
Here are my calculations: Lead weights 708 lbs per cubic foot or .409 lbs per cubic inch. And the area of a circle is Pie(3.1417) times radius squared-then 3.14 times 9 squared is 254.47 square inches therefore if it is 1 in thick it would weigh 254.47 times .409 which equals 104.078 lbs.Then 500 lbs divided by 104.078 equals 4.80 inches thick.
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