AnswersPhysics Univ AUniversal Law of Gravitation

Universal Law of Gravitation Answers

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1
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The acceleration due to gravity on Jupiter is 23.1 m/s2, which is about twice the acceleration due to gravity on Neptune.

A
An object weighs about one-fourth as much on Jupiter as on Neptune.
B
An object weighs about one-half as much on Jupiter as on Neptune.
C
An object weighs about two times as much on Jupiter as on Neptune.
D
An object weighs about four times as much on Jupiter as on Neptune.
2
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How is the gravitational force related to the distance between two objects?

A
It is directly proportional to the square of the distance.
B
It is inversely proportional to the square of the distance.
C
It is directly proportional to the distance.
D
It is inversely proportional to the distance.
3

The gravitational force between two objects is 45,000 N. What will be the gravitational force between the two objects if the distance between the objects is reduced by one-half?

A
11,250 N
B
22,500 N
C
90,000 N
D
180,000 N
4

The universal law of gravitation states that the force of attraction between two objects depends on which quantities?

A
the masses of the objects and their densities
B
the distance between the objects and their shapes
C
the densities of the objects and their shapes
D
the masses of the objects and the distance between them
5

A baseball has a mass of 0.145 kilograms, and a bowling ball has a mass of 6.8 kilograms. What is the gravitational force between them if their centers are 0.5 m apart?

A
1.0 × 10–13 N
B
1.3 × 10–10 N
C
2.6 × 10–10 N
D
1.1 × 10–8 N

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