Question and answer
Which one of the following frequencies of a wave in the air can be heard as an audible sound by the human ear? A. 100,000 Hz B. 1,000 Hz C. 10 Hz D. 0.10 Hz
B. 1,000 Hz can be heard as an audible sound by the human ear.
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User: Which one of the following frequencies of a wave in the air can be heard as an audible sound by the human ear? A. 100,000 Hz B. 1,000 Hz C. 10 Hz D. 0.10 Hz

Weegy: B. 1,000 Hz can be heard as an audible sound by the human ear.
andrewpallarca|Points 18029|

User: Which of the following phenomena is taking place when sound waves are reflected from a surface along parallel lines? A. Refracting B. Focusing C. Absorption D. Diffusion

Weegy: D. Refracting is taking place when sound waves are reflected from a surface along parallel lines.
andrewpallarca|Points 18029|

User: When a sound from a source is refracted away from the surface of the earth, it gives an indication that the A. wind is blowing in the direction of the sound. B. ground is cooling faster than the air. C. air has high humidity. D. air is cooler than the ground.

Weegy: B. wind is blowing in the direction of the sound
bananayumboat|Points 553|

User: The spreading of sound waves around openings in barriers is called A. an echo. B. reverberation. C. refraction. D. diffraction.

Weegy: B. diffraction
shifa saleheen|Points 9891|

User: Which one of the following environments will sound not travel through? A. Liquid B. Solid C. Vacuum D. Gas





Weegy: Sound will not travel through: C. Vacuum.
Expert answered|debnjerry|Points 42142|



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Asked 12/29/2012 1:11:22 PM
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When the temperature of the air is 25°C, the velocity of a sound wave traveling through the air is approximately A. 320 m/s. B. 357 m/s. C. 332 m/s. D. 347 m/s. User: Sound waves can't travel through A. a solid. B. an elastic material. C. a liquid. D. a vacuum.
Weegy: Sound waves cannot travel through B.) a vacuum. User: A surface receiving sound is moved from its original position to a position three times farther away from the source of the sound. The intensity of the received sound thus becomes A. nine times as high. B. nine times as low. C. three times as high. D. three times as low. Weegy: A surface receiving sound is moved from its original position to a position three times farther away from the source of the sound. The intensity of the received sound thus becomes B. nine times as low. (More)
Question
Expert Answered
Asked 12/29/2012 1:16:25 PM
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The maximum distance a molecule has been moved from its normal position by a wave is A. compression. B. frequency. C. rarefaction. D. amplitude.
Weegy: The maximum distance a molecule has been moved from its normal position by a wave is C. amplitude. User: A wave front has the form of a A. surface of a sphere. B. straight line. C. sine wave. D. circle. Weegy: C. A wave front has the form surface of a sphere and User: If a person is in front of a smooth surface from which a sound is reflected, the person would hear a sound that A. has a higher intensity than the sound produced by the source. B. seems to come from behind the surface. C. has a higher pitch than the sound produced by the source. D. seems to lack overtones. Weegy: The answer is A. has a higher pitch than the sound produced by the source. User: If you were trying to build a soundproof room, which of the following materials would you choose in order to absorb the most sound? A. Heavy curtains B. Wood C. Concrete D. Carpet Weegy: If you were trying to build a soundproof room you need Carpet in order to absorb the most sound. User: In which one of the following locations can a person hear the echo of a sound? A. Less than 33.2 meters behind the reflecting surface B. At least 16.6 meters in front of the reflecting surface C. At least 33.2 meters behind the reflecting surface D. Less than 16.6 meters in front of the reflecting surface Weegy: B. At least 16.6 meters in front of the reflecting surface can a person hear the echo of a sound User: A sound that's produced by a single wave at a constant frequency and with no overtones is called A. a mellow sound. B. a pure sound. C. an average sound. D. a discordant sound. Weegy: B. a pure sound is produced by a single wave at a constant frequency and with no overtones User: An overtone that's a whole number multiple of the fundamental frequency of a string is called a A. harmonic. B. pitch. C. scale. D. discordant sound. ... (More)
Question
Expert Answered
Asked 12/29/2012 12:45:43 PM
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If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is A. 80 degrees. B. 0 degrees. C. 90 degrees. D. 40 degrees.
Question
Not Answered
Updated 72 days ago|3/17/2016 12:53:21 AM
1 Answer/Comment

If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is 40 degrees.

Added 72 days ago|3/17/2016 12:53:21 AM
This answer has been confirmed as correct, not copied, and helpful.
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