Asuper train is moving along a track at a speed close to the speed of light. you are watching the train from the ground. you observe lightning to strike in two places along the track, a mile apart, at precisely the same time. what would someone on the train say?

Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics

A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?