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A certain object has a length of 136.9 m and a cross-sectional area of 0.00000145 cm2....

A certain object has a length of 136.9 m and a cross-sectional area of 0.00000145 cm2. At the reference temperature of 22.5 degrees Celcius, the object has a resistance of 26.5 Ohms. At 27.8 degrees Celcius the object has a resistance of 20.6 Ohms. What is the temperature coefficient of resistivity for this object?

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