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AP® Physics 1 & 2

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Red Giant Sun

APPH12-Z35KMS

As the Sun nears the end of its life it will evolve into a red giant. The mass of the Sun will remain relatively unchanged, but the Sun will grow to approximately the current size of Earth's orbit ($215$ times the Sun's current radius). The Sun currently rotates once every 25 days.

By what factor will the Sun's angular momentum change as it grows into a red giant?

A

$215$

B

$1$

C

$0$

D

$25$