ch12-p064 - 64. To support a load of W = mg = (670 kg)(9.8...

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(a) If L = 12 m, then 4 21 1 2 6566 N (12 m) 8.0 10 m. (0.0125 m) (2.0 10 N/m ) L π §· Δ= = × ¨¸ × ©¹ (b) Similarly, when L = 350 m, we find Δ L = 0 023 .m . 64. To support a load of W = mg = (670 kg)(9.8 m/s
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