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JEE Advanced Physics 2019 Paper 1 #14 (#14) Statics, Young's Modulus
Автор: Michel van Biezen
Загружено: 2020-10-03
Просмотров: 1911
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A block of wight 100N is suspended by copper and steel wires of the same cross sectional area of 0.5m^2 and lengths SQRT(3) and 1m respectively. Their other ends are fixed at the ceiling. The angles subtended are 30 and 60 degrees respectively. What is the ratio of the change in lengths of the copper and steel wires?
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