Enrichment Activity: Think Like Einstein! 1. A 35-year-old astronaut traveling at a speed of 0.75c needs to cover 25 years as measured by a clock on board the spaceship to make a round-trip to a nearby star. How old would his twin brother be when he returns to Earth? 2. The length and diameter of a spacecraft as determined by the mission control on Earth are 76 m and 23 m, respectively. The spacecraft moves at 0.7c relative to Earth. What are its dimensions as measured by an astronaut on board? The spacecraft is moving parallel to its length.
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Enrichment Activity: Think Like Einstein! 1. A 35-year-old astronaut traveling at a speed of 0.75c needs to cover 25 years as measured by a clock on board the spaceship to make a round-trip to a nearby star. How old would his twin brother be when he returns to Earth? 2. The length and diameter of a spacecraft as determined by the mission control on Earth are 76 m and 23 m, respectively. The spacecraft moves at 0.7c relative to Earth. What are its dimensions as measured by an astronaut on board? The spacecraft is moving parallel to its length