A wire suspended vertically from one end is stretched by attaching a w – McqOptions

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1.	A wire suspended vertically from one end is stretched by attaching a weight of 20N to the lower end. The weight stretches the wire by 1mm. How much energy is gained by the wire?
A.	0.01J
B.	0.02J
C.	0.04J
D.	1.0J
Answer» B. 0.02J

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