What would happen to the planets in a solar system where the central star did not have a strong wind?
A) Nothing, the star does not affect the process of planet formation.
B) One planet would grow to dominate all the others and gravitationally eject them out of the system.
C) All planets would continue to grow to large sizes but their orbits would be unchanged.
D) The gas in the solar nebula would create a drag on the planets and their orbits would migrate inwards.
E) The gas in the solar nebula would create a drag on the planets and their orbits would migrate outwards.
Question 2
Light travels at 300,000 km/sec. About how far does light travel in 10 years?
A) about 3,000,000 kilometers
B) about 30,000 kilometers
C) about 10 light-years
D) about 10 trillion kilometers
E) about 30 million seconds
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