A copper wire sags 50.0 cm between two utility poles30.0 m
Chapter 17, Problem 17.84(choose chapter or problem)
A copper wire sags 50.0 cm between two utility poles30.0 m apart when the temperature is 15C. Estimate theamount of sag when the temperature is +35C. [Hint: Anestimate can be made by assuming the shape of the wire isapproximately an arc of a circle; hard equations can sometimesbe solved by guessing values.]
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