A 20-m long steel wire (cross-section 1.0 cm2, Young's modulus 2.0 × 1011 N/m2) , is subjected to a load of 25 000 N. How much will the wire stretch under the load?
A) 0.25 cm
B) 2.5 cm
C) 12.5 cm
D) 25 cm
E) 1.25 cm
Correct Answer:
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