An astronaut takes off from Earth and moves at speed 0.99c toward the star Z, which is 26 ly distant. How much time will have elapsed by earth clocks:- (a). When the astronaut reaches star Z, (b). When earth observers receive word from astronaut that she has arrived? (c). How much older will earth observers calculate the astronaut to be (measured from her frame) when she reaches star Z than she was when she started the trip?
An astronaut takes off from Earth and moves at speed 0.99c toward the star Z, which is 26 ly distant. How much time will have elapsed by earth clocks:- (a). When the astronaut reaches star Z, (b). When earth observers receive word from astronaut that she has arrived? (c). How much older will earth observers calculate the astronaut to be (measured from her frame) when she reaches star Z than she was when she started the trip?
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Transcribed Image Text:An astronaut takes off from Earth and moves at speed 0.99c
toward the star Z, which is 26 ly distant. How much time will
have elapsed by earth clocks:-
(a). When the astronaut reaches star Z,
(b). When earth observers receive word from astronaut that she
has arrived?
(c). How much older will earth observers calculate the
astronaut to be (measured from her frame) when she reaches
star Z than she was when she started the trip?
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