Keeping your frames straight: Proper time and proper distance. For each of the f
ID: 3163929 • Letter: K
Question
Keeping your frames straight: Proper time and proper distance. For each of the following situations, determine in which frame the proper time is measured and in which frame the proper distance is measured. The proper time between events is measured by an observer for whom the 2 events occur at the same location. The proper distance is measured in the frame where the two events happen simultaneously (a meter stick measuring the distance is at rest). A spaceship is detected traveling at 0.8c with respect to Earth. It sends out two flashes of light. Do the flashes occur at the same place in either frame? In which frame (Earth or spaceship) is the time between flashes the proper time? In which frame is the proper distance between flashes measured? An astronaut flying by Earth measures her pulse rate, as does a flight surgeon on Earth Who measures the proper time interval, the astronaut or the doctor? ESA shuttle Europa was to travel to a planetary system several light years away Who measures the proper time for the journey and how do you know? What is the proper length of the journey? Are there any confusing aspects to identifying the proper length in this situation? How would you set up a situation to eliminate the confusion?Explanation / Answer
1)
The flashes does not occur at the same place in either frame according to the Einstein relativistic theory .
The space ship is moving with respect to the earth ..therefore the proper occurred in the earth frame ..
This is also same as the above question ...Earth frame
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