Concept explainers
a.
To find: the force on the eardrum.
a.
Answer to Problem 67A
The force on ear drum is
Explanation of Solution
Given data:
Amplitude of a pressure wave is
Area of the eardrum is
Formula used:
Calculation:
Conclusion:
The force on the eardrum is
b.
To find:the force that the bones exert on the oval window.
b.
Answer to Problem 67A
The force exerted on the oval window is
Explanation of Solution
Given data:
Force on eardrum is
The mechanical advantage of the three bones in the middle ear is
Formula used:
As
Calculation:
Substituting the values, we get
Conclusion:
The force exerted on the oval window is
c.
To find: the pressure increase that is transmitted to the liquid in the cochlea.
c.
Answer to Problem 67A
The pressure increase is
Explanation of Solution
Given data:
Area of the oval window is
Force exerted on the oval window is
Formula used:
Calculation:
Conclusion:
The pressure increase that is transmitted to the liquid in the cochlea is
Chapter 15 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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