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for this answer it's false i made a 90 on this test :)

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What are waves with frequencies over 20000 Hz?

Waves with frequencies over 20,000 Hz are considered ultrasonic waves. They are higher in frequency than what humans can hear, and are commonly used in medical imaging, cleaning processes, and communication technologies.


What is sound frequency?

Sound frequency refers to the number of vibrations per second of a sound wave, measured in Hertz (Hz). Higher frequencies correspond to higher pitch sounds, while lower frequencies correspond to lower pitch sounds. Humans can typically hear frequencies ranging from 20Hz to 20,000Hz.


What kind of sounds have frequencies higher than 20000 Hz?

Sounds with frequencies higher than 20000 Hz are considered ultrasonic and are typically outside the range of human hearing. These sounds can be produced by animals like bats and dolphins for echolocation, as well as certain electronic devices like ultrasonic sensors and medical equipment.


What sound frequencies can humans hear?

typically 20-20000 Hz - but this range will decrease with age


What frequency of sounds can people hear?

The range of frequencies that people can hear is generally from 20 Hz to 20,000 Hz. However, individual hearing abilities can vary slightly, with younger individuals typically being able to hear higher frequencies than older individuals.


What is the frequency of a sound wave?

The frequencies (cycles per second) of the audible vibrations are between 20 Hz and 20000 Hz.


Sound waves with frequencies above 20000 hz?

Sound waves with frequencies above 20,000 Hz are considered ultrasonic. These frequencies are above the upper limit of human hearing and are commonly used in applications like medical imaging, cleaning, and animal communication.


What frequencies of sound can humans hear?

typically 20-20000 Hz - but this range will decrease with age


Humans can hear frequencies between?

The audible range of frequencies for humans is, on average, between 20 Hz and 20kHz, although it varies between individuals. As humans age, however, this range normally decreases, especially on the higher end of the range.


What is sounds with frequencies above 20000 Hz?

Sounds with frequencies above 20,000 Hz are considered ultrasonic and are generally not audible to the human ear. Some animals, such as bats and dolphins, are capable of hearing and producing sounds in this frequency range. Ultrasonic frequencies are also used in various technologies like medical imaging and pest control.


What is 33 percent of 20000?

3.3% of 20,000= 3.3% * 20000= 0.033 * 20000= 660


What is 42 percent of 20000?

42% of 20000= 42% * 20000= 0.42 * 20000= 8,400