it s a hw question ..........
A sound wave in air has a frequency of 262Hz and travels with a speed of 330m/s. How far the wave crests( compressions)?
2007-04-24 18:33:56 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
use the formula
v=f(lambda)
speed of a wave = frequency * wavelength
330 = 262 * wavelength
wavelength = 1.26 m
2007-04-24 19:04:55 · answer #1 · answered by Amy F 3 · 0⤊ 0⤋
The basic wave equation is c = λ * f, where
c is the velocity of wave propagation,
λ is the wave length and
f is the frequency of the wave.
In this question we are interested in the quantity λ, so, solving for this we get
λ = c / f
Substituting we get
λ = 330m/s / 262Hz = 1,2595 m
which is the answer to your question!
2007-04-25 04:26:22 · answer #2 · answered by fanis t 2 · 0⤊ 0⤋
Wavelength is equal to propagation velocity divided by frequency (read your book, it's in there) so
330/262 = 1.259 m
Doug
2007-04-25 02:04:05 · answer #3 · answered by doug_donaghue 7 · 0⤊ 0⤋