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An astronaut has weight W on Earth. The astronaut travels to a planet that has a mass 8 times greater than Earth's mass, and its radius is 2 times greater than Earth's radius. What is the astronaut's weight
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An astronaut has weight W on Earth. The astronaut travels to a planet that has a mass 8 times greater than Earth's mass, and its radius is 2 times greater than Earth's radius. What is the astronaut's weight on the planet?

User Marc Wouts
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The mass alone would multiply his weight by 8. ... the radius alone would multiply his weight by 1/4. ... Together, his weight becomes ( 8 / 4 ) W = 2W.
User SoroushA
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