Physics, 03.12.2019 22:31 taelor32

Aluminum rod#1 has a length l and a diameter d. aluminum rod#2 has a length 2l and a diameter 2d. if rod#1 is under tension t and rod#2 is under tension 2t, how do the changes in length of the two rods compare?
a) rod #2 has quadruple the change in length that rod #1 has.
b) rod #2 has double the change in length that rod #1 has.
c) rod #1 has double the change in length that rod #2 has.
d) they are the same.
e) rod #1 has quadruple the change in length that rod #2 has.

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Aluminum rod#1 has a length l and a diameter d. aluminum rod#2 has a length 2l and a diameter 2d. if...