An astronaut journeying to the nearby star Lacaille 9352 at a speed of 0.850c relative to Earth requires 20.0 years as measured on Earth to complete his trip.   Which of the following refers to proper time?

College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter26: Relativity
Section: Chapter Questions
Problem 44AP: An alarm clock is set to sound in 10.0 h. At t = 0, the clock is placed in a spaceship moving with a...
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TIME DILATION

An astronaut journeying to the nearby star Lacaille 9352 at a speed of 0.850c relative to Earth requires 20.0 years as measured on Earth to complete his trip.

 

Which of the following refers to proper time?

20 years
 
 
 
37.97 years
 
 
 
10.54 years
 
 
 
7.75 years
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TIME DILATION

An astronaut journeying to the nearby star Lacaille 9352 at a speed of 0.850c relative to Earth requires 20.0 years as measured on Earth to complete his trip.

Which of the following refers to dilated time?

20 years
 
 
 
10.54 years
 
 
 
7.75 years
 
 
 
37.97 years
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