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Task 3-A brass tie bar of length 500 mm and diameter 20 mm undergoes a change in temperature from 25°C to 135° C. The linear expansivity of copper is 19 10C and its modulus of elasticity is 84 Gpa. i) Determine the change of length that takes place. ii) Determine the compressive force induced in the bar if it is rigidly held and expansion is prevented
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dia 2omm change 읽 lenth in baht charg e 잊 le Compresiv e fone indu ced the jorte fedurced eautalheor te that could cocue the

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