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College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs
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Engineering Application: A suspension bridge oscillates

Chapter 16, Problem 46

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QUESTION:

 Problem 46PE

Engineering Application: A suspension bridge oscillates with an effective force constant of 1.00×108 N/m . (a) How much energy is needed to make it oscillate with an amplitude of 0.100 m? (b) If soldiers march across the bridge with a cadence equal to the bridge’s natural frequency and impart 1.00 × 104 J of energy each second, how long does it take for the bridge’s oscillations to go from 0.100 m to 0.500 m amplitude?

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QUESTION:

 Problem 46PE

Engineering Application: A suspension bridge oscillates with an effective force constant of 1.00×108 N/m . (a) How much energy is needed to make it oscillate with an amplitude of 0.100 m? (b) If soldiers march across the bridge with a cadence equal to the bridge’s natural frequency and impart 1.00 × 104 J of energy each second, how long does it take for the bridge’s oscillations to go from 0.100 m to 0.500 m amplitude?

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Solution 46PE

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