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Circular Motion and Gravitation

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Circular Motion and Gravitation

- away from the center of the circular path
- toward the center of the circular path
- tangent to the circular path
- None of the above – it varies

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[MC Any]

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- away from the center of the circular path
- toward the center of the circular path
- tangent to the circular path
- None of the above – it varies

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[MC All]

- away from the center of the circular path
- toward the center of the circular path
- tangent to the circular path
- None of the above – it varies

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- triples
- is 1/3 as much
- is nine times as much
- is 1/9 as much
- remains the same

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- 0.5 sec
- 2 sec
- 15 sec
- 50 sec

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- triples
- is 1/3 as much
- is 9 times as much
- is 1/9 as much
- remains the same

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- m/s
- m/s2
- N
- Nm

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- m/s
- m/s2
- N
- Nm

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- tension
- friction
- gravity
- inertia

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- tension
- friction
- gravity
- inertia

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- tension
- friction
- gravity
- inertia

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- Radius, mass
- Mass and speed, radius
- Radius, mass and speed squared
- Mass and speed squared, radius

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- doubled
- ½ as much
- quadrupled
- ¼ as much
- the same

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- tripled
- 1/3 as much
- nine times as much
- 1/9 as much
- the same

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- 138 N
- 275 N
- 550 N
- 1100 N
- 2200 N

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- Away from each object
- Toward each object
- Same direction for each objecct

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- The less massive object
- The more massive object
- Each feels the same force
- The more dense object

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- 96.4 N
- 2100 N
- 156 N
- 214 N

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The mass of the moon is 7.3 x 1022 kg and the mass of the earth is 5.98 x 1024 kg. If their centers are 3.6 x 108 m apart, what is the gravitational force between them?

- 2.25 x 1052 N
- 6.24 x 1011 N
- 2.25 x 1020 N
- [6.02 x 1024 N

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- 0.254 m
- 0.0644 m
- 15.5 m
- 3.94 m

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- 2.5 N
- 30 N
- 240 N
- 75 N

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A 70.0 kg child sits on the outer edge of a carousel. If the centripetal force acting on her due to friction is 2710 N and her speed is 8.80 m/s, how far from the center is she located?

- 2.0 m
- 0.5 m
- 0.227 m
- 0.0286 m

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The Millenium Falcon has to orbit Nabu before landing. If the distance of 4562 km from the center of Nabu and has a centripetal acceleration of 4.42 m/s2, what is its orbital speed?

- 560 m/s
- 1060 m/s
- 4490 m/s
- 20,164 N

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A 1.2 kg mass is attached to a string 1.0 long and swings in a horizontal circle at a rate of 8.0 turns in 6.0 s. What is the speed of the mass?

- 4.71 m/s
- 1.33 m/s
- 4.19 m/s
- 8.38 m/s

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