Chemistry, 01.08.2019 05:00 mahaleyrenee1195

Which of the following statements is an accurate description of vibrations? a. ultrasonic vibrations have a frequency lower than the range for normal hearing b. infrasound vibrations are used in sonar equipment as well as to detect flaws in steel castings c. neither ultrasonic nor infrasonic vibrations can be heard by humans d. the frequency of infrasonic vibrations is much too high to be heard by humans

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Which of the following statements is an accurate description of vibrations? a. ultrasonic vibration...

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