Question

A 100-N weight is attached to a free end of a metallic wire that hangs
from the ceiling. When a second 100-N weight is added to the wire, it stretches 3,0
mm. The diameter and the length of the wire are 1,0 mm and 2,0 m, respectively.
What is Young's modulus of the metal used to manufacture the wire?

1) E=200∙10 9 Pa;
2) E=42,5∙10 9 Pa;
3) E=170∙10 9 Pa;
4) E=85∙10 9 Pa.

Answer 1

Answer:

Explanation:2 is the right option

Answer 2

Answer:

hy dude ur answer is

Explanation:

option 2 is correct

E=42, 5-10 9 pa..

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