Audible wavelengths. the range of audible frequencies is from about 20.0 hz to 2.00×104 hz . what is range of the wavelengths of audible sound in air?

The range of the wavelengths of audible sound in air is from about 0.0172 m to 17.2 m

Let's recall the speed of wave and intensity of wave formula as follows:

f = frequency of wave ( Hz )

v = speed of wave ( m/s )

λ = wavelength ( m )

I = intensity of wave ( W/m² )

A = amplitude of wave ( m )

f = frequeny of wave ( Hz )

ρ = density of medium ( kg/m³ )

v = speed of wave ( m/s )

Let's tackle the problem!

Given:

minimum frequency = f_min = 20.0 Hz

maximum frequency = f_max = 2.00 × 10⁴ Hz

speed of sound in air = 343 m/s ( assumption )

Asked:

minimum wavelength = λ_min = ?

maximum wavelength = λ_max = ?

Solution:

Grade: College

Subject: Physics

Chapter: Sound Waves

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it