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[" 5.Two cylindrical rods of the same ma...

[" 5.Two cylindrical rods of the same material has "],[" the same temperature difference between "],[" ends.The ratio of the rates of flow of he "],[" through them is "1:8." The radii of the rods? "],[" in the ratio "1:2." What is the ratio of the "],[" lengths? "]

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