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Homework Help: Physics-Please check

Posted by JulieAnne on Wednesday, January 5, 2011 at 6:11pm.

Posted by JulieAnne on Wednesday, January 5, 2011 at 5:15pm.

Please check my two answers


I was sitting in a park on a bench next to another person and I moved tow times the original distance between the two of us, the force of gravity between me and the other person would be:
1. one-quarter as much
2. one-half as much
3. twice as much
4. 4 times as much

I think it would be one-half as much because the force of gravity diminishes the farther you get away from object, correct or no?

2. If Earth's mass was increased by 4 times the amount, remain the same distance from the sun, would the speed of the Earth:
stay the same
increase by factor of 4
decrease by factor of 2
increase by factor of 2

I think it would stay the same, correct?

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