The Dwarf Planet Eris Has a Moon Called Dysomia,which Is

question 14

Multiple Choice

The dwarf planet Eris has a moon called Dysomia,which is much smaller in mass than Eris.If Dysomia has an orbital period of 16 days and orbits Eris at a distance of 40,000 km,then what is the mass of Eris?

• A)2 × 10¹³ kg
• B)2 × 10²² kg
• C)2 × 10²⁸ kg
• D)2 × 10³² kg
• E)2 × 10³⁵ kg

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