Question: The acceleration g due to gravity on a spherical planet in any universe is given by: GM R g= where M is the mass,

The acceleration g due to gravity on a spherical planet in any

The acceleration g due to gravity on a spherical planet in any universe is given by: GM R g= where M is the mass, R the radius of the planet and G is the gravitational constant in that planet's universe. In a different universe the gravitational constant is G' and has twice the value of the gravitational constant in our Universe G. Find the ratio planet for a planet in the different universe which has half the radius and 9Earth twice the density of the Earth. A 9planet 9Earth B 9planet 9Earth 1 C 9planet 9Earth D 9planet 9Earth = 4 E gplanet 9Earth 1 [2]

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