Two firecrackers explode at the same place in the lab - oratory and are separated by a time of 3 years as measured on a laboratory clock. What is the spatial distance between these two events in a rocket in which the events are separated in time by 5 years as measured on rocket clocks? What is the relative speed of the rocket and lab - oratory frames? Two firecrackers explode in a laboratory with a time difference of 4 years and a space separation of 5 light - years, both space and time measured with equipment at rest in the laboratory. What is the distance between these two events in a rocket in which they occur at the same time?
