In frame S, event B occurs at 2 μs after event A and at Δx = 1.5km from event A.
(a) How fast must an observer be moving along the +x axis so that events A and B occur simultaneously to this observer?
(b) Is it possible for event B to precede event A for some observer?
(C) Illustrate (a) and (b) on a space-time diagram.
(e) Compute the space-time interval between A and B in some frame of reference.