Solve the all parts of given questionquestion a spaceship, Ask an Expert

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Solve the all parts of given question:

Question: A spaceship containing an astronaut travels at a speed of 0.50 c relative to a second inertial observer.

Part A: How much time does a clock on board the spaceship appear to lose in a day, according to the second observer?

Part B: What is the total energy of the astronaut according to the astronaut if her mass is 70kg?

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