"Randy Poe" wrote in message
...
| On Jan 30, 7:29 pm, "Ockham" wrote:
| Your way:- change both wavelength and frequency
| Transmit: wavelength = 1 foot, frequency 10 Hz for one second,
| speed relative to source = 10 fps.
| Receive: wavelength = 2 foot, frequency 5 Hz for one second,
| speed relative to receiver = 10 fps, 5 cycles received.
|
| In 1 second.

So the wide receiver catches the ball at 100 fps as he runs
away from it and the quarterback threw the ball at 100 fps
while standing still.
That you do not understand Galilean relativity is your problem.