Hi. I have a question that I suppose is related to the Lorentz transformation, but I think that this situation is more simple: instead of relating the position of a light source between two observers, how would one relate the time difference between when a light signal is actually emitted versus when it is observed between an observer and an emitter that have a relative velocity?(adsbygoogle = window.adsbygoogle || []).push({});

So, if the two systems originally coincided and they are moving away from each other at a constant velocity "v", and at time "t", light is emitted from the emitter, at what time (t') relative to t, will the observer receive the signal?

I'm assuming that the Lorentz transformation, as it is, doesn't apply here since it's a significantly different situation (unless we can just set x=0?).

Thanks in advance, for any insight

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# Time difference: light emitted vs observed

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