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23 Nov 2019
When the Sun became hot and luminous long ago, it is believed thatit ejected dust
particles and individual atoms out of the solar system usingradiation pressure.
Calculate how small the dust particles had to be in order to beejected by comparing
the radiation force with the gravitational force on the particles.Assume, the particles
are spherical, have a density of 2.0 x 103 kg/m3, and totallyabsorbradiation. The Sun had an average power output of 3.8 x 106W.
When the Sun became hot and luminous long ago, it is believed thatit ejected dust
particles and individual atoms out of the solar system usingradiation pressure.
Calculate how small the dust particles had to be in order to beejected by comparing
the radiation force with the gravitational force on the particles.Assume, the particles
are spherical, have a density of 2.0 x 103 kg/m3, and totallyabsorbradiation. The Sun had an average power output of 3.8 x 106W.
Jamar FerryLv2
4 Nov 2019
