| 41. | Antonio Valsalva was one of the first recorded Western observers of the respiratory arterial pressure wave phenomenon.
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| 42. | -human ears can distinguish air pressure waves within the frequencies range of : 20 to 20000 Hz;
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| 43. | Furthermore, experiments have been carried out under vacuum, in which case there are no air pressure waves.
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| 44. | These results show that ballistic impacts produce pressure waves that propagate at close to the speed of sound.
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| 45. | A transient pressure wave from a nearby detonation may compress the explosive sufficiently to make its initiation fail.
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| 46. | Models of sound waves as pressure waves in my physics class seem to assume the ideal gas law.
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| 47. | The dark halo may have been caused by an atmospheric shock or pressure wave produced by the incoming body.
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| 48. | They are able to detect the presence of pressure wave _ or motion of another body in the water.
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| 49. | Once they feel the pressure wave of our offense, they may not have more stomach for the fight ."
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| 50. | Then the pressure wave hit me and it felt like it was going to break every bone in my body.
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