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The weight of a steel rod can be calculated using the formula: weight = volume × density. The volume of a cylinder is given by the formula ( V = \pi r^2 h ), where ( r ) is the radius and ( h ) is the height. For an 8-foot long rod with a 3-inch diameter, the radius is 1.5 inches (0.125 feet). Using the density of steel, which is approximately 490 pounds per cubic foot, the rod weighs about 24.5 pounds.

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2w ago

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