/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 17 The Moon has no atmosphere. Is i... [FREE SOLUTION] | 91影视

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Chapter 16: Problem 17

The Moon has no atmosphere. Is it possible to generate sound waves on the Moon?

Short Answer

Expert verified
Answer: Yes, sound waves can be generated on the Moon. Although there is no atmosphere for sound waves to propagate through the air, they can propagate through the Moon's surface and subsurface. An astronaut on the Moon can perceive these sound waves when the vibrations are transmitted through their spacesuit, which acts as a medium allowing the sound to reach their ears.

Step by step solution

01

Understanding Sound Waves

Sound waves are longitudinal waves that propagate through a medium by transferring the energy of particle-to-particle through vibrations. These vibrations cause the particles to compress and expand, creating areas of high and low pressure known as compressions and rarefactions.
02

Propagation medium

A medium is necessary for sound waves to propagate. In the case of Earth, the medium is generally air but sound can also propagate through liquids like water, and solids like metal and earth. The presence of a medium allows for the particles to vibrate and transfer energy from one particle to another.
03

The Moon's lack of atmosphere

Since it has already been mentioned that the Moon has no atmosphere, this eliminates the possibility of sound waves propagation through the air on the Moon. However, we should explore the potential of other mediums to transmit sound waves on the Moon.
04

Surface and subsurface as a medium

Although the Moon doesn't have an atmosphere, it does have a solid surface and subsurface comprised of rock and soil, known as regolith. Sound waves could potentially propagate through the Moon's surface and subsurface, as they would in Earth's solid ground.
05

Transmission through a spacesuit

An astronaut on the surface of the Moon could also perceive sound waves generated in the Moon's surface and subsurface when these vibrations reach their spacesuit. Since a spacesuit is a sealed environment with air inside, it acts as a medium through which sound waves can propagate and reach the astronaut's ears.
06

Conclusion

In conclusion, although there is no atmosphere on the Moon to facilitate the propagation of sound waves through the air, sound waves can still be generated and propagate through the Moon's surface and subsurface. Furthermore, an astronaut on the surface of the Moon can perceive these sound waves when the vibrations are transmitted through their spacesuit, allowing them to hear the sound.

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Most popular questions from this chapter

Two 100.0-W speakers, A and B, are separated by a distance \(D=3.6 \mathrm{~m} .\) The speakers emit in-phase sound waves at a frequency \(f=10,000.0 \mathrm{~Hz}\). Point \(P_{1}\) is located at \(x_{1}=4.50 \mathrm{~m}\) and \(y_{1}=0 \mathrm{~m} ;\) point \(P_{2}\) is located at \(x_{2}=4.50 \mathrm{~m}\) and \(y_{2}=-\Delta y .\) Neglecting speaker \(\mathrm{B}\), what is the intensity, \(I_{\mathrm{A} 1}\) (in \(\mathrm{W} / \mathrm{m}^{2}\) ), of the sound at point \(P_{1}\) due to speaker \(\mathrm{A}\) ? Assume that the sound from the speaker is emitted uniformly in all directions. What is this intensity in terms of decibels (sound level, \(\beta_{\mathrm{A} 1}\) )? When both speakers are turned on, there is a maximum in their combined intensities at \(P_{1} .\) As one moves toward \(P_{2},\) this intensity reaches a single minimum and then becomes maximized again at \(P_{2}\). How far is \(P_{2}\) from \(P_{1},\) that is, what is \(\Delta y ?\) You may assume that \(L \gg \Delta y\) and that \(D \gg \Delta y\), which will allow you to simplify the algebra by using \(\sqrt{a \pm b} \approx a^{1 / 2} \pm \frac{b}{2 a^{1 / 2}}\) when \(a \gg b\).

You are traveling in a car toward a hill at a speed of \(40.0 \mathrm{mph} .\) The car's horn emits sound waves of frequency \(250 \mathrm{~Hz},\) which move with a speed of \(340 \mathrm{~m} / \mathrm{s}\) a) Determine the frequency with which the waves strike the hill. b) What is the frequency of the reflected sound waves you hear? c) What is the beat frequency produced by the direct and the reflected sounds at your ears?

A sound level of 50 decibels is a) 2.5 times as intense as a sound of 20 decibels. b) 6.25 times as intense as a sound of 20 decibels. c) 10 times as intense as a sound of 20 decibels. d) 100 times as intense as a sound of 20 decibels. e) 1000 times as intense as a sound of 20 decibels.

You are driving along a highway at \(30.0 \mathrm{~m} / \mathrm{s}\) when you hear a siren. You look in the rear-view mirror and see a police car approaching you from behind with a constant speed. The frequency of the siren that you hear is \(1300 \mathrm{~Hz}\). Right after the police car passes you, the frequency of the siren that you hear is \(1280 \mathrm{~Hz}\). a) How fast was the police car moving? b) You are so nervous after the police car passes you that you pull off the road and stop. Then you hear another siren, this time from an ambulance approaching from behind. The frequency of its siren that you hear is \(1400 \mathrm{~Hz}\). Once it passes, the frequency is \(1200 \mathrm{~Hz}\). What is the actual frequency of the ambulance's siren?

A standing wave in a pipe with both ends open has a frequency of \(440 \mathrm{~Hz}\). The next higher harmonic has a frequency of \(660 \mathrm{~Hz}\) a) Determine the fundamental frequency. b) How long is the pipe?
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