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A particle in a 500 m long linear particle accelerator is moving at 0.800c How long does the particle accelerator appear to the particle? Select one: 272 m 242 m 219 m O 300 m

User Tinclon
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[L' = \frac500k}
\approx 219 \text{ meters}]
So, to the particle moving at (0.8C), the 500-meter long accelerator would appear to be approximately 219 meters long. The closest option from the provided choices is 219 m.
User Somesh
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