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>> No.12093906 [View]
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12093906

Dumb thought experiment:
I have an accelerating mass on a circular track, with a laser shining through a portion of the track. No losses due to friction, ideal scenario, etc, etc. Several questions:
>Does the laser blueshift?
>If it does, then the laser gains energy. I presume energy is transferred from the mass to the laser?
>If it does, then does the mass attempt to decelerate in the absence of a driving force?
>Finally, what happens when the mass clears the laser and it is allowed to shine back to the other end of the track? Where does the blueshifted energy go?

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