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Physics, 27.04.2021 16:00 frenchpotaetoes2832

The fictional rocket ship Adventure is measured to be 65 m long by the ship's captain inside the rocket. When the rocket moves past a space dock at 0.5c. As rocket ship Adventure passes by the space dock, the ship's captain flashes a flashlight at 1.20-s intervals as measured by space-dock personnel. Required:
How often does the flashlight flash relative to the captain?

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