1.

Two events occur simultaneously on the x axis of reference frame S, one at x = −a and the other at x = +a. According to an observer moving in the positive x direction: A. the event at x = +a occurs first B. the event at x = −a occurs first C. either event might occur first, depending on the value of a and the observer’s speed D. the events are simultaneous E. none of the above

Answer»

A. the event at x = +a occurs first



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