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Two Wires,A and B,have the Same Initial Length,but the Radius

Question 15

Multiple Choice

Two wires,A and B,have the same initial length,but the radius of A is four times that of B,and the Young's modulus of A is a third that of B.If the same weight is attached to both wires,what is the ratio of the extension of A divided by the extension of B?


A) 0.19
B) 48
C) 5.3
D) 1.3
E) 0.75

Correct Answer:

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