Suppose there is an astronaut who is traveling at a significant fraction of the speed of light. Part (a) How long, in years, does it take her to travel 4.05 ly at 0.95405c (as measured by the Earth-bound observer)? Part (b) How long does it take according to the astronaut in years?
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Suppose there is an astronaut who is traveling at a significant fraction of the
Part (a) How long, in years, does it take her to travel 4.05 ly at 0.95405c (as measured by the Earth-bound observer)?
Part (b) How long does it take according to the astronaut in years?
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- A spacecraft is moving at speed 0.61c relative to two star systems—star system A and star system B— that are always the same distance apart with respect to each other. Observers aboard the spacecraft measure the time taken to travel from start system A to star system B as 23.22 years. What is the distance between the two star systems, in light-years, as measured by an observer that is bound to star system B.2. a) The average life span for a dog is 12 years. Ifa dog is placed on a space ship traveling at 0.998 c, what will be the average life span of the dog according to someone on the space ship? b) An observer on earth sees a space ship traveling at 0.999c According to the earth observer, the space ship travels 20 light years. Is the 20 light years a proper or contracted length? c) A physicist in a lab creates a new particle which travels for 20 km before decaying According to the physicist the time it takes the particle to decay is 33.5 x 10 s Is the 20 km a proper of contracted length? Is the 33.5 x 10 sa proper or dilated time?Twins who are 19.0 years of age leave the earth and travel to a distant planet 12.0 light-years away. Assume that the planet and earth are at rest with respect to each other. The twins depart at the same time on different spaceships. One twin travels at a speed of 0.905c, and the other twin travels at 0.407c. (a) According to the theory of special relativity, what is the difference between their ages when they meet again at the earliest possible time? A₂-A₁ = (b) Which twin is older?
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