Physics, 26.11.2019 06:31 KenzieD7876
A145.0 km long electric power line made out of copper is installed during the spring months at an average temperature of 13.7 °c. what is the change in the length of the power line on a hot summer day, when the temperature is 42.0 °c? the coefficient of linear expansion for copper is 1.62×10-5 1/c°. use positive sign for an increase in length and negative for a decrease.
Answers: 2
= Original length of power line = 145 km
= Coefficient of linear expansion = 
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A145.0 km long electric power line made out of copper is installed during the spring months at an av...
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