The figure on the right shows a portion of the ring and moon system of Saturn. The inner edge of the Cassini division is defined by a 2:1 resonance with Mimas; that is, a particle at that distance orbits twice for every one orbit made by Mimas, and as a result, it feels an unbalanced gravitational tug outward. If Mimas has an orbital semimajor axis of 185,539 km, what is the semimajor axis of the inner edge of the Cassini division in km?

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The figure on the right shows a portion of the ring and moon system of Saturn. The inner edge of the Cassini division is defined by a 2:1 resonance with Mimas; that is, a particle at that distance orbits twice for every one orbit made by Mimas, and as a result, it feels an unbalanced gravitational tug outward.

If Mimas has an orbital semimajor axis of 185,539 km, what is the semimajor axis of the inner edge of the Cassini division in km? 

Cassini
Division
D Cring
ring
Fring
(Prometheus,
Pandora)
Encke
Division
(Pan)
Janus
Epimetheus
Bring
A ring
(outer edge: Atlas)
Gring
Cassini Saturn Orbit Insertion
Ring Plane Crossing
Mimas
Ering
Enceladus
Tethys
Transcribed Image Text:Cassini Division D Cring ring Fring (Prometheus, Pandora) Encke Division (Pan) Janus Epimetheus Bring A ring (outer edge: Atlas) Gring Cassini Saturn Orbit Insertion Ring Plane Crossing Mimas Ering Enceladus Tethys
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 Semimajor axis of the inner edge of the Cassini division in km.

 

 
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