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Two plastic rulers (R1 and R2) were subjected to the same stress. While R1 extended by only 10% of its original length, R2 extended by

  1. Two plastic rulers (R1 and R2) were subjected to the same stress. While R1 extended by only 10% of its original length, R2 extended by X % of its original length. Calculate the stress applied given the following Young's moduli: R1 = 1000 MPa and R2=600 MPa. Find x %. Determine the strain energy for each ruler given the applied strain. Which of these rulers is made out of more compliant material?

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