3.1.1 Newton’s Universal Law of Gravity
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Question 1 of 7
1. Question
1 point(s)How does force F depend on distance r?
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Question 2 of 7
2. Question
1 point(s)When the Earth pulls the Moon with a gravitational force of 10²⁰ N, what force does the Moon exert on the Earth?
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Question 3 of 7
3. Question
1 point(s)When the mass of two objects is tripled but their separation remains the same, by how much does their gravitational force alter?
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Question 4 of 7
4. Question
1 point(s)If two celestial bodies have masses 1.23×10²⁶ kg and 5.21×10²² kg, separated by 2.30×10¹¹ m, what’s the gravitational force between them? (Given G=6.67×10⁻¹¹ Nm²/kg²)
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Question 5 of 7
5. Question
1 point(s)If an explorer has a weight of 800N on Earth\’s surface, what would be their weight Rm above the Earth, where Rm is Earth\’s radius?
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Question 6 of 7
6. Question
1 point(s)For two satellites A and B of equal mass orbiting a planet, how does the gravitational force between A and the planet compare to that between B and the planet?
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Question 7 of 7
7. Question
1 point(s)When a spacecraft takes off from Earth, which graph depicts the gravitational force F on the spacecraft as its distance r from Earth augments?
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