Answer:
The wavelength, of a sound wave with a frequency of 20 waves per second is 15,000,000 m.
Step-by-step explanation:
In this question, we have to calculate the wavelength of a sound wave of frequency 20 waves per second.
We know that the speed of light in air/ vacuum is .
Now by the formula v = nλ , where v = speed of light in air/vacuum, n = frequency of the wave and λ = wavelength in meters,
we put the values
= 20 × λ
λ =
λ = 15,000,000 m
Answer:
4squareroot5
Step-by-step explanation:
<em>hope this helps. i am in algebra two so you can trust my answer. happy holidays and stay safe!</em>
Hey!~
I believe the correct answer is C, a postulate .
Hope this helps and have a great day!
-Lindsey