Quiz 2: A bronze bar 3 m long with a diameter of 20 mm is placed between two rigid walls as shown in Figure below. At a temperature of -30°C, the gap 4 = 0.5 mm. Find the temperature at which the compressive stress in the bar will be 35 MPa. Use a = 18.0 x 10 m(m-"C) E-8OGP.. L= 3 m

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