Engineering, 17.02.2020 21:04 cia029587691
A regional telephone company has one million subscribers. Each of their telephones is connected to a central office by a copper twisted pair. The average length of these twisted pairs is 10 km. How much is the copper in the local loops worth? Assume that the cross section of each strand is a circle 1 mm in diameter, the density of copper is 9.0 grams/cm3, and that copper sells for $6 per kilogram.
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A regional telephone company has one million subscribers. Each of their telephones is connected to a...
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