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October 2, 2014

Homework Help: physics

Posted by robert on Saturday, April 14, 2012 at 5:09am.

A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two supports attached to a ceiling. Initially, there is no tension in the wire when it is horizontal. A 88-N picture is then hung from the center of the wire, as the drawing illustrates, so the ends of the wire make angles of 26 with respect to the horizontal. What is the radius of the wire?

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