AU is a unit of distance. If the orbital speed of Earth at aphelion is v, what is the orbital speed of Earth at perihelion?
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A: The solution can be given as follows :-
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Q: Taking the age of Earth to be about 4 ✕ 109 years and assuming its orbital radius of 1.5 ✕ 1011 m…
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Angular momentum of earth about sun is conserved which means that at any point in the path of earth angular momentum is same.
Angular momentum of an object about a point is given as
L = mvr
where m is the mass of object , v is its speed and r is the distance from point
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