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Semi-major axis; compare t distance to Pluto,Alpha Centauri

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One of the brightest comets of the 20th century was Comet Hyakutake, which passed close to the sun in early 1996. The orbital period of this comet is estimated to be about 30,000 years.

a) Find the semi-major axis of this comet's orbit.
r= ? m

b) Compare it to the average sun-Pluto distance. (r / r_pluto) = ?
Express your answer using two significant figures.

c) Compare it to the distance to Alpha Centauri, the nearest star to the sun, which is 4.3 light-years distant. (r / r_alpha) =?
Express your answer using two significant figures.

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Complete, Neat and Step-by-step Solutions for (a) to (c) are provided in the attached file.

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