2. The "lead" in pencils is a graphite composition with a Young's modulus of approximately 1.0 x 109 N/m2. Calculate the change in length of the lead in an automatic pencil if you tap it straight into the pencil with a force of 4.0 N. The lead is 0.50 mm in diameter and 60 mm long. Al =

2. The "lead" in pencils is a graphite composition with a Young's modulus of approximately 1.0 x 109 N/m2. Calculate the change in length of the lead in an automatic pencil if you tap it straight into the pencil with a force of 4.0 N. The lead is 0.50 mm in diameter and 60 mm long. Al =

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter5: Further Applications Of Newton's Laws: Friction, Drag, And Elasticity

Section: Chapter Questions

Problem 31PE: (a) The "lead" in pencils is a graphite composition with a Young's modulus of about 1109 N/ m2....

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Question

2. The "lead" in pencils is a graphite composition with a Young's modulus of approximately 1.0 x 109 N/m2.
Calculate the change in length of the lead in an automatic pencil if you tap it straight into the pencil with a
force of 4.0 N. The lead is 0.50 mm in diameter and 60 mm long.
Al =

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