C
Collin
Guest
Pt 1.
A stereo speaker represented by P in the fig-
ure emits sound waves with a power output of
91.93 W.
Pt. 2
The ”red shift” of radiation from a distant
galaxy consists of the light known to have a
wavelength of 433 nm when observed in the
laboratory, appearing to have a wavelength of
465 nm .
What is the speed of galaxy in the line of
sight relative to the Earth? Answer in units
of m/s.
I'm trying to study for my test and I'm really stuck on these problems. Can anyone help? Thanks in advance.
*** second part of part 1...
What is the intensity of the sound waves
at point x, 17.7 m away? Answer in units of
W/m 2 .
A stereo speaker represented by P in the fig-
ure emits sound waves with a power output of
91.93 W.
Pt. 2
The ”red shift” of radiation from a distant
galaxy consists of the light known to have a
wavelength of 433 nm when observed in the
laboratory, appearing to have a wavelength of
465 nm .
What is the speed of galaxy in the line of
sight relative to the Earth? Answer in units
of m/s.
I'm trying to study for my test and I'm really stuck on these problems. Can anyone help? Thanks in advance.
*** second part of part 1...
What is the intensity of the sound waves
at point x, 17.7 m away? Answer in units of
W/m 2 .