Some taxes are inadvertently hidden, but others are consciously designed that way to disguise the cost of government. Itâs easy to see why: the total U.S. tax burden is equal to 56 percent of annual personal consumption spending.
Thus, the volume is proportional to the amplitude of the sound wave. The frequency of a sound wave is perceived as pitch. Humans can detect pitches within the acoustic range of 20 to 20,000 Hz, but we can't detect ultrasound or infrasound.
Confidence votes 34.3K. Hertz, named after the German Physicist Heinrich Hertz, are the measurement of frequency, current, and electricity, their uses are common in many fields, sound waves, radiation, hertz are even used to represent the speed of your computer. Hertz come in 21 tiers of measurement - listed from smallest to largest: Yoktohertz.