The earth and the sun are 8.3 light-minutes apart. Ignore the relative motion between them and suppose they are fixed in a SRI; the earth-sun system. (A) Two events, A and B, occur at times t = 0 on earth and at t = 4 minutes on the sun, respectively. Find the period of time between the two events according to an observer moving at a speed V = 0.8c from the earth towards the sun. Repeat the analysis when the observer is moving at the same speed, but from the sun towards the earth. (B) Imagine an astronaut traveling from the sun to the earth. What is the speed of the spacecraft if it makes the trip in 4 minutes according to a clock on the spacecraft? (C) How long did the trip in part (B) take according to the earth-sun system?

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The earth and the sun are 8.3 light-minutes apart. Ignore the relative motion between them and suppose they are fixed in a SRI; the earth-sun system.

(A) Two events, A and B, occur at times t = 0 on earth and at t = 4 minutes on the sun, respectively. Find the period of time between the two events according to an observer moving at a speed V = 0.8c from the earth towards the sun. Repeat the analysis when the observer is moving at the same speed, but from the sun towards the earth.

(B) Imagine an astronaut traveling from the sun to the earth. What is the speed of the spacecraft if it makes the trip in 4 minutes according to a clock on the spacecraft?

(C) How long did the trip in part (B) take according to the earth-sun system?

 

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