Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Question
Chapter 16, Problem 81P
(a)
To determine
To Show:The fractional change in frequency of an organ pipe is related to absolute temperature as follows:
(b)
To determine
To Calculate: The fundamental frequency of pipe.
(c)
To determine
To Compare: The fundamental frequency from part (b) with actual calculations.
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The area of a typical eardrum is about 5.0 × 10–5m2 . Calculate the sound power (the energy per second) incident on an eardrum at (a) the threshold of hearing and (b) the threshold of pain.
The area of a typical eardrum is about 5.0 x 105 m2,
(a) Calculate the sound power (the energy per second) incident on an eardrum at the threshold of hearing.
(b) Calculate the sound power incident on an eardrum at the threshold of pain.
(a) Ear trumpets were never very common, but they did aid people with hearing losses by gathering sound over a large area and concentrating it on the smaller area of the eardrum. What decibel increase does an ear trumpet produce if its sound gathering area is 900 cm2 and the area of the eardrum is 0.500 cm2 , but the trumpet only has an efficiency of 5.00% in transmitting the sound to the eardrum? (b) Comment on the usefulness of the decibel increase found in part (a).
Chapter 16 Solutions
Physics for Scientists and Engineers
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