Thank you for the opportunity to help you with your question! the solution is as such:
E = [F/ Ao] / [L/ Lo]
E is the youngs modulus
F is the force applied = mg
Ao is the orignal cross section area = pi* r^2
L is the change in length
Lo is the original length
so, E = 1.48 * 10 ^ 8
Please let me know if you need any clarification. I'm always happy to answer your questions.awaiting a positive feedback. It was lovely helping you. Please do contact or text me directly for more work assistance. Looking forward to help you again.
Jul 8th, 2015
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