Asked by mary
a solid aluminum cube measuring 15 inches on a side is melted and rolled into an aluminum wire tat is 0.2 inches in diameter. what will be the length of this wire?
Answers
Answered by
Reiny
volume of original cube = 15^3 cubic inches
= 3375 cubic inches
The volume should stay the same.
Think of the wire as a "long" cylinder.
πr^2 h = 3375
π(.1^2)h = 3375
h = 3375/(.01π) = appr. 107430 inches
or appr. 8952 ft
= 3375 cubic inches
The volume should stay the same.
Think of the wire as a "long" cylinder.
πr^2 h = 3375
π(.1^2)h = 3375
h = 3375/(.01π) = appr. 107430 inches
or appr. 8952 ft
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