Conceptual Physics: The High School Physics Program

9th Edition

ISBN: 9780133647495

Author: Paul G. Hewitt

Publisher: Prentice Hall

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Textbook Question

Chapter 26, Problem 28A

Why will marchers at the end of a long parade following a band be out of step with marchers nearer the band?

Expert Solution & Answer

To determine

To Explain: The reason that the band will be out of step with marchers nearer the band at the end of a long parade.

Answer to Problem 28A

As the parade is long so the sound will take time to travel and they will step to the delayed beat.

Explanation of Solution

Introduction:

The sound will take time to travel if the distance is long.

The sound has a velocity of 334 m/s in the air, as the distance increases the sound will take time to reach the destination. The same situation happed during a long parade. The marchers at the end of the long parade hear a delayed sound of the band and respond to that beat. This will step off then from the marchers at the nearer the band.

Conclusion:

The sound takes time to travel long distance this will step off the marchers as they heard delayed beat from band.

Chapter 26, Problem 27A

Chapter 26, Problem 29A

Chapter 26 Solutions

Conceptual Physics: The High School Physics Program

Ch. 26 - What is the source of all sounds?Ch. 26 - How does pitch relate to frequency?Ch. 26 - What is the average frequency range of a young...Ch. 26 - Distinguish between infrasonic and ultrasonic...Ch. 26 - a. Distinguish between compressions and...Ch. 26 - Light can travel through a vacuum, as is evidenced...Ch. 26 - Prob. 7A Ch. 26 - How does the speed of sound in air compare with...Ch. 26 - Why does sound travel faster in solids and liquids...Ch. 26 - Is sound intensity subjective or is loudness...

Ch. 26 - Why do different objects make different sounds...Ch. 26 - What does it mean to say that everything has a...Ch. 26 - Why is sound louder when a vibrating source is...Ch. 26 - What is the relationship between forced vibration...Ch. 26 - Why can a tuning fork or bell be set into...Ch. 26 - How is resonance produced in a vibrating object?Ch. 26 - What does tuning in a radio station have to do...Ch. 26 - Is it possible for one sound wave to cancel...Ch. 26 - Why does destructive interference occur when the...Ch. 26 - How does interference of sound relate to beats?Ch. 26 - What is the beat frequency when a 494-Hz tuning...Ch. 26 - The three waves below have the same frequency and...Ch. 26 - A pair of tuning forks of frequencies f1 and f2...Ch. 26 - If the moon blew up, why wouldnt we be able to...Ch. 26 - When watching at a baseball game, we often hear...Ch. 26 - In the stands of a racetrack, you notice smoke...Ch. 26 - In an Olympic competition, a microphone picks tip...Ch. 26 - Why will marchers at the end of a long parade...Ch. 26 - You watch a distant farmer driving a stake into...Ch. 26 - When a sound wave propagates past a point in the...Ch. 26 - If the speed of sound depended on its frequency,...Ch. 26 - If the frequency of sound is doubled, what change...Ch. 26 - Why is an echo weaker than the original sound?Ch. 26 - How much more intense is a close whisper than a...Ch. 26 - The signal-to-noise ratio for a tape recorder is...Ch. 26 - If the handle of a tuning fork is held solidly...Ch. 26 - The sitar, an Indian musical instrument, has a set...Ch. 26 - Suppose a piano tuner hears 2 beats per second...Ch. 26 - Why is it dangerous for people in the balcony of...Ch. 26 - Why is the sound of a harp soft in comparison with...Ch. 26 - What physics principle is used by Laura when she...Ch. 26 - Suppose a sound wave and an electromagnetic wave...Ch. 26 - A special device transmits out-of-phase sound to a...Ch. 26 - Prob. 44A Ch. 26 - A bat flying in a cave emits a sound and receives...Ch. 26 - An oceanic depth-sounding vessel surveys the ocean...Ch. 26 - On a field trip to Echo Cave, you clap your hands...Ch. 26 - Susie hammers on a block of wood when she is 85 m...Ch. 26 - Prob. 49A Ch. 26 - Suppose your friend is foolish enough to play his...Ch. 26 - Two sounds, one at 240 Hz and the other at 243 Hz,...Ch. 26 - Two notes are sounding, one of which is 440 Hz. If...Ch. 26 - What beat frequencies are possible with tuning...Ch. 26 - Prob. 55A Ch. 26 - Blow over the tops of two identical empty bottles...

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