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

Weegy: When a sound from a source is refracted away from the surface of the earth, it gives an indication that the: D. air is cooler than the ground.
andrewpallarca|Points 29217|

User: In a stringed musical instrument, the part that vibrates in resonance with the sound waves produced by the strings is called the A. diatonic scale. B. sounding board. C. reed. D. membrane.

Weegy: In a stringed musical instrument, the part that vibrates in resonance with the sound waves produced by the strings is called the C. sounding board.
Janet17|Points 5752|

User: In a transverse wave that travels through a medium, the molecules of the medium vibrate A. at twice the velocity of the molecules in a longitudinal wave. B. at right angles to the direction in which the wave travels. C. with smaller amplitudes than the molecules in a longitudinal wave. D. in the direction in which the wave travels.

Weegy: B. at right angles to the direction in which the wave travels. Longitudinal waves vibrate the medium in the same direction as the propogation of the wave.
lolai3|Points 50|

User: The part of the ear where sound wave compressions and rarefactions cause the eardrum to vibrate is the A. middle ear. B. inner ear. C. auditory nerve. D. outer ear.

Weegy: The part of the ear where sound wave compressions and rarefactions cause the eardrum to vibrate is the C. middle ear.
debnjerry|Points 54655|

User: If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is A. 40 degrees. B. 90 degrees. C. 0 degrees. D. 80 degrees.

Weegy: If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is: A. 40 degrees.
Expert answered|andrewpallarca|Points 29217|

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Asked 1/12/2014 3:12:17 PM
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