3. 20 mm çapa ve 600 mm uzunlu?a sahip bir dairesel kesitli çubuk 50 kN çekme kuvveti etkisinde kald???nda boyu 1.40 mm uzam??t?r ve çap? ise 19.9837 mm olmu?tur. Çubu?un Elastisite modülünü ve poisson oran?n? hesaplay?n?z.
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