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The gravitational acceleration on Earth is g=9.8 m/s2. Consider a planet outside the solar system that...

The gravitational acceleration on Earth is g=9.8 m/s2. Consider a planet outside the solar system that has a mass 4 times larger than that of Earth and a radius that is also 4 times larger than that of Earth. Estimate the gravitational acceleration (in m/s2) on that planet.

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