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# This is a classical mechanics question. Halley's comet has a eccentricity of 0.967 and a perihelion distance of 89x10^6 km.

This is a classical mechanics question.Halley's comet has a eccentricity of 0.967 and a perihelion distance of 89x10^6 km. Calculate the aphelion distance, the speeds at perihelion and aphelion, and the time period of the orbit.