Two wires are made of the same material and have the same volume. The first wire has cross-secti... VIDEO
Two wires are made of the same material and have the same volume. The first wire has cross-sectional area \( A \) and the second wire has cross-sectional area \( -3 A \). If the length of the first wire is increased by \( \Delta l \) on applying a force \( F \), how much force is needed to stretch the second wire by the same amount?https://bit.ly/YTAI_PWAP https://www.pw.live
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