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Q & A: origins of gravity

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Most recent answer: 05/23/2013
if the earth was made of plastic (solid plastic core), would it have a gravitational pull?? and WHY?? Please be as specific as you can, thank you so much ken
- ken (age 44)
boca raton fl.

Yes, all forms of energy cause gravity. That includes any type of rest mass- molten iron, plastic, used comic books, caviar, whatever. All objects gravitationally attract all other objects. 

Mike W.

(published on 05/23/2013)

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