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At a temperature of 39.5 °C a 0.4-mm gap exists between the ends of the rods shown. At a later time when the temperature has reached 129.1°C, determine the change in length of the steel rod if L = 306.32 mm and M = 226 mm. Round off the final answer to four decimal places.

d
м
M
A
В
Aluminum
A = 2000 mm²
E = 75 GPa
a = 23 × 10-6/°C
Stainless steel
A = 800 mm²
E = 190 GPa
a = 17.3 × 10-6/°C|

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