Physics 1025-A spaceship is travelling away from the Earth

Physics 1025-A spaceship is travelling away from the Earth

Subject: Physics / General Physics
Question
A spaceship is travelling away from the Earth with a speed of 0.6 c as measured by an observer on Earth. The rocket sends a light pulse back to Earth every 10 minutes as measured by a clock on the spaceship.

a) Calculate the distance that the rocket travels between light pulses as measured by observer on Earth. Show all calculation steps.

(b) If the Earth observer measures the length of the spaceship as 60 m, determine the proper length of the spaceship. Show all calculation steps.