An advanced space probe in the twenty-first century travelsfrom the earth with a speed of 5.00 x 106 m/s relativeto the earth and then returns at the same speed. The probe carriesan atomic clock that has been carefully synchronized with anidentical clock that remains at rest on the earth. The probereturns after 1 year, as measured on earth, has passed.
(a) What is the difference in the elapsed times on the twoclocks?
(b) Which clock, the one in the probe or the one on earth,shows the smallest elapsed time?