Assertion: doppler effect | /r/UsedFor | moving observer
Facets:
Source sentences:
text: The first Doppler shift is for the moving observer; the second is for the moving source.
text: The first Doppler shift is for the moving observer; the second is for the moving source.
text: The first Doppler shift is for the moving observer; the second is for the moving source.
text: The first Doppler shift is for the moving observer; the second is for the moving source.