Is it like a moving source or moving observer

Reference no: EM131109704

You are driving toward a cliff and you honk your horn. Is there a Doppler shift of the sound when you hear the echo? If so, is it like a moving source or moving observer? What if the reflection occurs not from a cliff, but from the forward edge of a huge alien spacecraft moving toward you as you drive?

Reference no: EM131109704

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