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###### How big is a ton? That is, what is the volume of something that weighs a ton? To be specific, estimate the diameter of a 1-ton rock, but first make a wild guess: will it be 1 ft across, 3 ft, or the size of a car? [$Hint$: Rock has mass per volume about 3 times that of water, which is 1 kg per liter (10$^3$ cm$^3$) or 62 lb per cubic foot.]

How big is a ton? That is, what is the volume of something that weighs a ton? To be specific, estimate the diameter of a 1-ton rock, but first make a wild guess: will it be 1 ft across, 3 ft, or the size of a car? [$Hint$: Rock has mass per volume about 3 times that of water, which is 1 kg per liter (10$^3$ cm$^3$) or 62 lb per cubic foot.]

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