Problem 2.7: Which of the following is true for all relative velocities?
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Two measuring sticks pass close by each other with relative speeds comparable to the speed of light (position is given in meters and time is given in seconds). A light flash occurs when the right ends of the sticks coincide, event 1, and again when the left ends coincide, event 2. Which of the following statements are true? Restart.
- There is a unique speed when the events are simultaneous in both reference frames.
- Event 1 always occurs before event 2.
- The red and green observers always agree on which event occurred first.
- None of the above.