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3.1-If the mass of the earth were to quadruple, and the earths radius remained the same, would we weigh more or less? By how

3.1-If the mass of the earth were to quadruple, and the earths radius remained the same, would we weigh more or less? By how much? 4.2- If the suns radius were to shrink until the sun became a black hole, how much would the suns force of gravity on the earth be in comparison to what the suns force of gravity is now?

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