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![T_R = T_D * [\frac{a_R}{a_D} ]^{\frac{3}{2} }](/tpl/images/0898/7185/5adc3.png)
![T_R = 18.164 * [\frac{ 45}{60} ]^{\frac{3}{2} }](/tpl/images/0898/7185/9917e.png)
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A piece of rocky debris in space has a semi major axis of 45.0 AU. What is its orbital period?...
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