Name: Anonymous 2009-10-02 9:25
A sound wave produces a pressure variation given by
p(x,t)=0.5sin[(pi/4) (x-720t)
p in Pascals, x in metres and t in seconds.
From the general for of a soudn wave wave function;
p(x,t)=BkA sin (kx-wt) I've found the pressure amplitude by
p(max)=BkA=0.5P
I've been asked to find the frequency and wavelength as well,
I used f=w/2pi and lambda=2pi/k and came out with f=90Hz and lambda=8m
Do these answers sound sensible?
p(x,t)=0.5sin[(pi/4) (x-720t)
p in Pascals, x in metres and t in seconds.
From the general for of a soudn wave wave function;
p(x,t)=BkA sin (kx-wt) I've found the pressure amplitude by
p(max)=BkA=0.5P
I've been asked to find the frequency and wavelength as well,
I used f=w/2pi and lambda=2pi/k and came out with f=90Hz and lambda=8m
Do these answers sound sensible?