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Spiderweb An orb weaver spider with a mass of 0.26 g hangs vertically by one of its thread...

Spiderweb An orb weaver spider with a mass of 0.26 g hangs vertically by one of its threads. The thread has a Young’s modulus of 4.7 × 109N/m2 and a radius of 9.8 × 10−6 m. (a) What is the fractional increase inthe thread’s length caused by the spider? (b) Suppose a 76-kg person hangs verticallyfrom a nylon rope. What radius must the rope haveif its fractional increase in length is to be the same as that of the spider’s thread?

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