12. Which of the following phenomena is taking place when sound waves are reflected from a surface along parallel lines? A. Refracting B. Focusing C. Diffusion D. Absorption
Refracting is taking place when sound waves are reflected from a surface along parallel lines.
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Updated 2/24/2016 1:33:35 AM
Confirmed by jeifunk [2/24/2016 1:33:35 AM]
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The distance from one molecule in a body to the nearest molecule in the body occupying a similar position and moving in the same direction is a A. refraction. B. rarefaction. C. compression. D. wavelength.
Weegy: The distance from one molecule in a body to the nearest molecule in the body occupying a similar position and moving in the same direction is a Wavelength. (More)
Updated 2/24/2016 1:30:10 AM
During the process of steel production, the flaws in steel casting are detected by A. infrasonic vibrations. B. resonant vibrations. C. ultrasonic vibrations. D. longitudinal vibrations.
Weegy: During the process of steel production, the flaws in steel casting are detected by ultrasonic vibrations. (More)
Updated 2/24/2016 1:34:41 AM
The spreading of sound waves around openings in barriers is called A. diffraction. B. refraction. C. an echo. D. reverberation.
Weegy: The spreading of sound waves around openings in barriers is called DIFFRACTION. (More)
Updated 2/24/2016 1:25:44 AM
If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is A. 80 degrees. B. 40 degrees. C. 0 degrees. D. 90 degrees.
Question
Updated 2/24/2016 12:02:14 AM
If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is 40 degrees.
Confirmed by yumdrea [2/24/2016 12:03:59 AM]
If a string vibrates at the fundamental frequency of 528 Hz and also produces an overtone with a frequency of 1,056 Hz, this overtone is the A. second harmonic. B. fourth harmonic. C. third harmonic. D. first harmonic.
Weegy: If a string vibrates at the fundamental frequency of 528 Hz and also produces an overtone with a frequency of 1,056 Hz, this overtone is the second harmonic. (More)
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Updated 2/24/2016 1:40:09 AM
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