A copper rod of cross sectional area 0. 500 cm^2 and and length 1. 00 m is elongated by 2 x 10^-2 mm and a steel rod of the same cross-sectional area but 0. 100 m in length is elongated by 2 x 10^-3 mm. Which rod has greater tensile strain?.

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Which source would provide the most bias-free information about smoking and increased health risks? a) a website created by heart disease patients b) a research study conducted by the mayo clinic eliminate c) a public service message sponsored by tobacco companies d) an online question forum conducted by attorneys for cardiac specialists