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3. At 20C there is a gap of A = 0.4 mm between the ends of the aluminum and magnesium bars shown in the
3. At 20C there is a gap of A = 0.4 mm between the ends of the aluminum and magnesium bars shown in the figure. Determine the stress in each bar when the temperature rises to 120C. Calculate the change in the length of the magnesium bar. Given: E=70 GPa, Em 45 GPa, ag = 23 x 10-6C, am = 26 x 10-60C, A = 500 mm2, Am = 1200 mm? %3D %3D 0.2 m 0.25 m B D Aluminum Magnesium
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Fundamentals of Physics
Authors: Jearl Walker, Halliday Resnick
8th Extended edition
471758019, 978-0471758013
