2. Determine the increase in length of a steel bar whose length is 100 in, if the bar is heated from room temperature of 70°F to 500°F. Assume coefficient of thermal expansion α= 6.7×10-6/°F for steel.

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2. Determine the increase in length of a steel bar whose length is 100 in, if the bar is heated from room temperature of 70°F to 500°F. Assume coefficient of thermal expansion α= 6.7×10-6/°F for steel.

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General Physics PRemastered 2 years 1 Answer 546 views 0

Answer ( 1 )

  1. T1 = 70 F

    T2 = 500 F

    L = 100 in

    L = Lo + k*Lo (T – To).
    L = 100 + 6.7*10^-6*100(500 – 70),
    L = 100 + 0.2881 = 100.288 in

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