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Exercise 23
The Cassini spacecraft is headed toward the planet Saturn at a speed of 30,000 meters per second relative to Earth's position. (a) During a three year time period as calculated by a person on Earth, how much time will pass according to Cassini's onboard clock? (b) When Cassini's distance to Saturn is measured by an observer on Earth to be exactly 3 million km, how far will that distance appear to be from Cassini? |