Astronaut Flo wishes to travel to a star 20 light-years away and return. Her husband Malcolm, who was the same age as Flo when she departs, stays home (baking cookies). If Flo travels at a constant speed of 80% of the speed of light (except for a short time to turn around), how much younger than Malcolm will Flo be when she returns
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Astronaut Flo wishes to travel to a star 20 light-years away and return. Her husband Malcolm, who wa...
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