1. (40 points) a) (28 points) In a little over 5 billion years, our star will...

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1. (40 points) a) (28 points) In a little over 5 billion years, our star will slough off~20% of its mass and collapse to a white dwarf star of radius 8,000 km. We will model it as a sphere. What will its angular momentum be in terms of its current angular momentum? What will its rotation period be in terms of its current period? b) (12 points) What will its rotational kinetic energy be in terms of its current rotational kinetic energy? 1. (40 points) a) (28 points) In a little over 5 billion years, our star will slough off~20% of its mass and collapse to a white dwarf star of radius 8,000 km. We will model it as a sphere. What will its angular momentum be in terms of its current angular momentum? What will its rotation period be in terms of its current period? b) (12 points) What will its rotational kinetic energy be in terms of its current rotational kinetic energy?

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