Answered: 4.12-Consider a particle of dust… | bartleby

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4.12 Consider a particle of dust orbiting a star in a circular orbit, with
velocity v. This particle absorbs stellar photons, heats up, and then emits
the excess energy isotropically in its rest frame.
a. Show that in absorbing a photon the angular momentum of the
particle about the star does not change. (Assume the photons are
traveling radially outward from the star.)

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