2.2 x 10 28 kg 2.5 x 10 28 kg 1.3 x 10 28 kg 1.0 x 10 28 kg 3.7 x 10 28 kg

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2.2 x 10 28 kg 2.5 x 10 28 kg 1.3 x 10 28 kg 1.0 x 10 28 kg 3.7 x 10 28 kg

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2.2 x 10 28 kg 2.5 x 10 28 kg 1.3 x 10 28 kg 1.0 x 10 28 kg 3.7 x 10 28 kg

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The period of a satellite circling planet Nutron is observed to be 95 s when it is in a circular orbit with a radius of 7.0 x 106 m. What is the mass of planet Nutron? (G = 6.67 x 10-11 N·m2/kg2) Select the correct answer.

- 2.2 x 1028 kg
- 2.5 x 1028 kg
- 1.3 x 1028 kg
- 1.0 x 1028 kg
- 3.7 x 1028 kg

A satellite circles planet Roton every 2.9 h in an orbit having a radius of 1.5 x 107m. If the radius of Roton is 4.5 x 106m. what is the magnitude of the free-fall acceleration on the surface of Roton? Select the correct answer.

- 60 m/s2
- 73 m/s2
- 27 m/s2
- 32 m/s2
- 35 m/s2

A 50-kg satellite circles planet Cruton every 6.6 h in an orbit with a radius of 11 x 106m. What is the magnitude of the gravitational force on the satellite by planet Cruton? Select the correct answer.

- 38 N
- 51 N
- 77 N
- 58 N
- 13 N

Two identical planets orbit a star in concentric circular orbits in the star's equatorial plane. Of the two, the planet that is farther from the star must have _____ . Select the correct answer.

- the smaller period
- the greater period
- the smaller gravitational mass
- the larger gravitational mass
- the larger universal gravitational constant

What is the kinetic energy of a 220-kg satellite as it follows a circular orbit of radius 8.0 x 106 m around the Earth? (Mass of Earth = 6.0 x 1024 kg. G = 6.7 x 10-11 N·m2/kg2) Select the correct answer.

- 5.5 x 109J
- 6.0 109J
- 4.0 1010J
- 3.5 x 1010J
- 3.0 x 1010J

What is the escape speed from a planet of mass M and radius R if M = 2.2 x 1023 kg and R = 3.4 x 106 m? (G = 6.7 x 10-11 N·m2/kg2) Select the correct answer.

- 2.9 km/s
- 2.5 km/s
- 1.7 km/s
- 4.5 km/s
- 4.9 km/s