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Integrated Concepts (a) Referring to Figure 20.34, find

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs ISBN: 9781938168000 42

Solution for problem 96PE Chapter 20

College Physics | 1st Edition

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College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

College Physics | 1st Edition

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Problem 96PE

Problem 96PE

Integrated Concepts (a) Referring to Figure 20.34, find the time systolic pressure lags behind the middle of the QRS complex. (b) Discuss the reasons for the time lag.

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Solution 96PE

a.) The time lag between systolic pressure and middle of the QRS complex is 0.25 s

b.) The QRS complex is the result of the depolarization of the ventricles, which causes it to contract. The pressure decreases at this time which leads to diastolic pressure. The heart is polarized after this contraction which raises the pressure to its maximum value making the heart ready for the next beat. The fact that the maximum pressure is approximately 1/3 of a heart cycle after the QRS complex says that during 2/3 of the cycle the heart is doing work, during the last 1/3 it is resetting to start again.

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Chapter 20, Problem 96PE is Solved
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Textbook: College Physics
Edition: 1
Author: Paul Peter Urone, Roger Hinrichs
ISBN: 9781938168000

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Integrated Concepts (a) Referring to Figure 20.34, find