Bars (1) are made of a polyimide plastic that has an elastic modulus of 3.8 GPa. Bar (2) is a nylon material that has an elastic modulus of 1.9 GPa. Each bar has a cross-sectional area of 900 mm2. Using L = 395 mm and Δ = 4.6 mm, what magnitude of load P will cause the normal stress in each bar to be the same value

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