Modest small children have really quick vocal cords due to which the frequency (or pitch) of their voice may be very large. This is certainly why their voice is shrill. When the air molecules connected to our ears start vibrating, the ears experience these vibrations as sound. Other plates come https://explain-in-brief-vibratio03578.blazingblog.com/28766383/the-5-second-trick-for-vibration-isolator-analysis