World Science Scholars
29.10 Invariants
Problem

## Module 29: Invariants Problem Set 2

Two coordinate systems are moving relative to one another with the usual provision that their spatial origins coincide at time $0$ in each frame. An observer in the first frame reports that a firecracker exploded at $(t,x)=(17,11)$ in units where $c=1$. An observer in the second frame claims that the firecracker exploded at $(12,7)$.

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