Key words: Abdominal, Abdominal Ultrasound, Abdominal-Ultrasound, Sound, Ultrasound
Question: What audio frequencies can be heard by the human ear?
Answer: The human ear can hear sound wave frequencies in the approximate range of 20 to 20,000 Hertz.
Question: How fast does sound waves travel?
Answer: At sea level, sound vibrations travel in the air at a speed of approximately 1087 ft. (331 m) per second.
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The largest sound file site on the internet - containing free downloadable sound files from movies, television, cartoons, comedy, and sound effects.
Sounddogs is a online source for sound effects, production music, sound clips, free sound effects samples and loops.
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