OK, I have this homework problem that I need some help solving . The question is as follows: Consider two events that take place at different points in the K system at the same instant t. If these two points are seperated by a distance delta-x, show that the events are not simultaneous in K' (which has a relative velocity v) and find the time interval delta-t' between them. I figure some of you have had courses where this material was covered in detail and have a firm understanding of how to derive the necessary formulas to prove the case. My teacher skimmed this material yet expects us to understand how to answer this question. I am starting to check various sources to figure it out, I just though it would help to get a little insight into other people's ways of solving problems. Thanks for any help you can provide.