The "lead" in pencils is a graphite composition with a Young's modulus of approximately 1.0 x 10° N/m2. Calculate the change in length (in mm) of the lead in an automatic pencil if you tap it straight into the pencil with a force of 4.5 N. The lead is 0.70 mm in diameter and 58 mm long. (Enter the magnitude.) 2.33 mm
The "lead" in pencils is a graphite composition with a Young's modulus of approximately 1.0 x 10° N/m2. Calculate the change in length (in mm) of the lead in an automatic pencil if you tap it straight into the pencil with a force of 4.5 N. The lead is 0.70 mm in diameter and 58 mm long. (Enter the magnitude.) 2.33 mm
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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