L O.

asked • 07/03/14

help with gravitational force

1.  what happens to the gravitational force between two objects if the distance between them is increased 4 times?
 
a.  increased 4 times
b.  increased 16 times
c.  reduced 4 times
d.  reduced 16 times
 
I know it has to be decreased so I think the answer is c ???
 
2.  assuming the distance between the objects were the same, which set of objects would have the greatest gravitational attraction?
 
a.  object A with a mass of 3 kilograms and object B with a mass of 2 kilograms
b.  object A with a mass of 3 kilograms and object b with a mass of 3 kilograms
c.  object A with a mass of 2 kilograms and object b with a mass of 2 kilograms
d.  all sets would have equal gravitational  attraction
 
I think D is the answer
 
 
thanks
 
Happy 4th!

Philip P.

If you increase the distance by 4 times, the force decreases by 1/42 = 1/16.
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07/03/14

L O.

Thank you.  I remember now that the force decreases squared.
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07/04/14

2 Answers By Expert Tutors

By:

Muhammad C.

tutor
Correction: D is the correct answer for the first question.
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07/03/14

Lasjksm B.

Yo moms the answer
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05/11/16

Lasjksm B.

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05/11/16

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