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Young's modulus problem help?

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A metal rod that is 4.3 m long and 0.58 cm^2 in cross-sectional area is found to stretch 0.25 cm under a tension of 4700 N.

1) What is Young's modulus for this metal?

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  1. Young modulus E appears in the formula

    change in length(DL)=lengthLxforceF/Excross sectional area S         (1)

    Solve (1) for E and introduce S=0.58x10^-4 m^2

    DL=0.25x10-2 m

    in order to obtain E in m^2/newton

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