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During a wrestling match, a 140 kg wrestler briefly stands on one hand during a maneuver...

During a wrestling match, a 140 kg wrestler briefly stands on one hand during a maneuver designed to perplex his adversary. By how much (in m) does the upper arm bone shorten in length? The bone can be represented by a uniform rod 38.0 cm in length and 2.10 cm in radius. Assume Young's modulus for bone under compression is 9  ✕ 109 N/m2.

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