An aluminum pipe has a length of 69 m at a temperature of 8°C.  An adjacent steel pipe at the same temperature is 5 mm longer.  At what temperature will the aluminum pipe be 15 mm longer than the steel pipe?  Assume that the coefficient of thermal expansion for the aluminum is 22.5×10-6/°C and that the coefficient of thermal expansion for the steel is 12.5×10-6/°C.

Structural Analysis
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An aluminum pipe has a length of 69 m at a temperature of 8°C.  An adjacent steel pipe at the same temperature is 5 mm longer.  At what temperature will the aluminum pipe be 15 mm longer than the steel pipe?  Assume that the coefficient of thermal expansion for the aluminum is 22.5×10-6/°C and that the coefficient of thermal expansion for the steel is 12.5×10-6/°C.

An aluminum pipe has a length of 69 m at a temperature of 8°C. An adjacent steel pipe at the same temperature is 5 mm longer. At
what temperature will the aluminum pipe be 15 mm longer than the steel pipe? Assume that the coefficient of thermal expansion for
the aluminum is 22.5×10-6/°C and that the coefficient of thermal expansion for the steel is 12.5×10-6/°C.
Answer:
Tf= i
°℃
Transcribed Image Text:An aluminum pipe has a length of 69 m at a temperature of 8°C. An adjacent steel pipe at the same temperature is 5 mm longer. At what temperature will the aluminum pipe be 15 mm longer than the steel pipe? Assume that the coefficient of thermal expansion for the aluminum is 22.5×10-6/°C and that the coefficient of thermal expansion for the steel is 12.5×10-6/°C. Answer: Tf= i °℃
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