A = 0.500 mm2(10-3m/1mm)2 = 5.0 × 10-7 m
1Pa = 1N/m2
Consider a steel guitar string of initial length L = 1.00 m and cross-sectional area A=0.500 mm2. The Young's modulus of the steel is Y = 2.0 × 1011 Pa. How far (ΔL) would such a string stretch under a tension of 1500 N?
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