Doppler effect
https://w3id.org/framester/wn/wn30/instances/synset-Doppler_effect-noun-1 <https://w3id.org/framester/wn/wn30/schema/NounSynset>
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Doppler effect
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11513179-n
Doppler effect
Doppler shift
107838216
110771008
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0
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0
change in the apparent frequency of a wave as observer and source move toward or away from each other
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111513179