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Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli
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(II) A 15-cm-long tendon was found to stretch 3.7 mm by a

Chapter 3, Problem 43P

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QUESTION:

Problem 43P

(II) A 15-cm-long tendon was found to stretch 3.7 mm by a force of 13.4 N. The tendon was approximately round with an average diameter of 3.5 mm. Calculate Young's modulus of this tendon.

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QUESTION:

Problem 43P

(II) A 15-cm-long tendon was found to stretch 3.7 mm by a force of 13.4 N. The tendon was approximately round with an average diameter of 3.5 mm. Calculate Young's modulus of this tendon.

ANSWER:

Step by step Solution

Step 1 of 2

L0=15cm=0.15m                                    (the original unstreched length of the tendon)

ΔL=3.7mm=0.0037m                             (change in length of the tendon under stress)

F=13.4N                                                 (the force in tendon causing the stress)

D=8.5mm=0.0085m                               (the diameter of the tendon)

R=D/2=0.0085/2= 0.00425m                 (the radius of the tendon)

E=?                                                          (young`s modulus of the tendon)

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