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A comet moves about the Sun in an elliptical orbit, with its closest approach to the...

A comet moves about the Sun in an elliptical orbit, with its closest approach to the Sun being about 0.410 AU and its greatest distance from the sun being 45.0 AU (1 AU = the Earth-Sun distance).
(a) Which of the comet's properties are conserved as the comet goes around the Sun? Select all that apply.

angular momentum

potential energy

kinetic energy

linear momentum

total energy



(b) If the comet's speed at closest approach is 54.0 km/s, what is its speed when it is farthest from the Sun?

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