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7. The breaking stress of wire is 10 N/m2. The density of the wire is 3.3 x 103 Kg/m3. What's the maximumlength of the wire so that it will cut due to its own weight when hung tied at its one end?a) 9.8 mb)98 mc) 30 md)34 m |
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Answer» S=F/A=(mg/A)/(X/L)x=S/DGx=10^6/3.3*10^3*10x=100/3.3=30m |
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