A 20-m long steel wire (cross-section 1.0 cm2, Young's modulus 2.0 × 10^11 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


b

Physics & Space Science

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A. (a)
B. (b)
C. (c)
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Describe ferromagnetism

What will be an ideal response?

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