Answer to Question #346870 in Astronomy | Astrophysics for Sugarplum

Question #346870

The orbital time of Neptune around the Sun is 165 Earth years and its orbital path is 30 times longer than that of the Earth.


a Calculate the orbital speed of Neptune relative to the Earth. orbital speed b


State how the speed of travel of Neptune compares with that of the Earth.


1
Expert's answer
2022-05-31T16:11:34-0400

"v_2=\\frac{30\\cdot 2\\pi a}{T_2}=1.14~\\frac{au}y,"

"v_1=\\frac{2\\pi a}{T_1}=6.28~\\frac {au}y,"

"\\frac{v_1}{v_2}=5.5."


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