A rocket is fired from the earth to the moon at a speed of 0.990c. Let two events be “rocket leaves earth” and “rocket hits moon.”
a. In the earth’s reference frame, calculate Δx, Δt, and the spacetime interval s for these events.
b. In the rocket’s reference frame, calculate Δx', Δt', and the spacetime interval s' for these events.
c. Repeat your calculations of part a if the rocket is replaced with a laser beam.