3. The figure below shows various positions of a child on a swing moving toward Mr. Doig on the ground blowing a 3-kHz whistle. If the child starts from rest at Point A a height 0.75 m above the ground, calculate the frequency the child hears at Points A, C, and E, on the swing forward. Additionally, calcu- late the frequency the child hears at Point C on the swing back. When does the child hear the highest pitch? Hint: you might want to use energy conservation. Here are some equations from a past unit: KE = mv² and PE = mgh. B D Whistle Whistle E

3. The figure below shows various positions of a child on a swing moving toward Mr. Doig on the ground blowing a 3-kHz whistle. If the child starts from rest at Point A a height 0.75 m above the ground, calculate the frequency the child hears at Points A, C, and E, on the swing forward. Additionally, calcu- late the frequency the child hears at Point C on the swing back. When does the child hear the highest pitch? Hint: you might want to use energy conservation. Here are some equations from a past unit: KE = mv² and PE = mgh. B D Whistle Whistle E

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.

Question

3. The figure below shows various positions of a child on a swing moving toward Mr. Doig on the ground
blowing a 3-kHz whistle. If the child starts from rest at Point A a height 0.75 m above the ground,
calculate the frequency the child hears at Points A, C, and E, on the swing forward. Additionally, calcu-
late the frequency the child hears at Point Con the swing back. When does the child hear the highest pitch?
Hint: you might want to use energy conservation. Here are some equations from a past unit: KE = mv²
and PE = mgh.
A
B
C
D
Whistle
Whistle
E

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