EBK COLLEGE PHYSICS
EBK COLLEGE PHYSICS
2nd Edition
ISBN: 9780134605500
Author: ETKINA
Publisher: PEARSON CO
Question
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Chapter 14, Problem 1RQ
To determine

The empirical evidence for Bernoulli’s effect.

Expert Solution & Answer
Check Mark

Answer to Problem 1RQ

Solution:

Snoring while sleeping is an empirical evidence of Bernoulli’s effect.

Explanation of Solution

Introduction:

Bernoulli’s principle states that fluids moving at a faster velocity have lesser pressure (In general, fluids include both liquids and gases. Air is a gas; hence, it is classified as a fluid). This falling of pressure due to increase in the velocity of a fluid is known as Bernoulli’s effect.

Explanation:

When air moves through the narrow opening above the soft palate at the back of the upper portion of the mouth, its pressure decreases. Below this soft palate, stationary air is present that exerts higher pressure on the palate. Due to this pressure difference, the palate is pushed and the opening tends to close.

The palate retakes its position when airflow stops, resulting in the opening of the passage. This phenomenon keeps on repeating. The opening and closing of the palate forms a rhythm. The palate vibrates with a rhythmic movement due to the continuous airflow, which leads to snoring.

A diagram representing the situation is given below.

EBK COLLEGE PHYSICS                    , Chapter 14, Problem 1RQ

Conclusion:

Snoring while sleeping is an empirical evidence of Bernoulli’s effect.

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Chapter 14 Solutions

EBK COLLEGE PHYSICS

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