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An astronomer wants to apply the period and distance law to Earth itself. That law applies to:
AInner ones
BComets only
CAll of them
DOuter ones
Answer & Solution
Correct answer: C. All of them
1. It links period and distance generally.
2. Earth is explicitly included.
3. It applies to all objects orbiting the Sun.
_Source: OpenStax Astronomy 2e, Chapter 3, Orbits and Gravity._
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