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A suspension bridge steel cables are rared to handle 9.00x 10^6 kg. The cables are 42...

A suspension bridge steel cables are rared to handle 9.00x 10^6 kg. The cables are 42 m long and have a radius of 0.41m. (a) what is the safety factor for the cables? (b) what is the maximum length the cable should be stretched?  

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