Question

Meteor Infrasound A meteor that explodes in the atmosphere creates infrasound waves that can travel multiple times around the globe. One such meteor produced infrasound waves with a wavelength of 6.6 km that propagated 8810 km in 8.67 h. Part A What was the frequency of these waves?

Answer 1

The frequency of these waves is
`4.27*10^(-2)\ Hz`

Step-by-step explanation:

Given that,

Wavelength = 6.6 km

Distance = 8810 km

Time t = 8.67 hr

We need to calculate the velocity of sound

Using formula of velocity

`v = (D)/(T)`

Where, D = distance

T = time

Put the value into the formula

`v =(8810)/(8.67)`

`v=1016\ km/hr`

We need to calculate the frequency

Using formula of frequency

`v=n\lambda`

`n=(v)/(\lambda)`

Put the value into the formula

`n=(1016)/(6.6)`

`n=153.93\ hr`

`n=(153.93)/(60*60)`

`n=0.0427\ Hz`

`n=4.27*10^(-2)\ Hz`

Hence, The frequency of these waves is
`4.27*10^(-2)\ Hz`