COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 9, Problem 59QAP
To determine
The magnitude of the tension 'T'.
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A tow truck is pulling a car out of a ditch by means of a steel cable (Y = 2.0 x 1011 N/m2) that is 8.91 m long and has a radius of 0.40B cm
When the car just begins to move, the tension in the cable is 904 N. How much has the cable stretched?
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C7-2. High-heel shoes can often do damage to soft wood
or linoleum floors. Using a reasonable weight and
dimensions for the heel of a regular shoe and a high-heel
shoe, determine the bearing stress under each heel if the
weight is transferred down only to the heel of one shoe.
/ MEDICAL PHYSIC
If the average diameter of a muscle fiber is 80 Angstrom and its surface tension is 1.6 dyne/cm, then the
maximum contracting force that can be produced by surface tension per square centimeter of muscle area is:
O a. 7X10 dyne/cm?
O b. 4X10 dyne/cm?
in
Oc 8X10 dyne/cm2
O d. 2X10 dyne/cm?
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Chapter 9 Solutions
COLLEGE PHYSICS
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