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In response to
"Heh. Smaug vs Billionaires. -- (link)"
by
Beryllium
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Quora on the weight of a mountain, even if only a quarter of the space is hollow for storage, its billions of pounds, also there were gem stones...
Posted by
zeitgeist
May 13 '21, 12:56
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For our 30 degree mountain the radius of the base r is root 3 times h so our formula simplifies to V = pi * h^3. Taking the height as 10000 ft we get V = 3.14 *10^12 cubic feet. A cubic foot of granite weighs about 170 lbs/ft^3, so the weight of our model mountain is about 530 * 10^12 lbs or 2.6 * 10^11 tons.
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