Large molecular clouds will form into protostars because of ____

a. the thermal motions of the atoms in the gas cloud
b. gravitational contraction
c. radiation pressure from nearby stars
d. the temperature reaching a critical point
e. condensation of dust and gas


b

Physics & Space Science

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When looking for the "Doppler Wobble" (radial velocity changes detected due to Doppler shifts), which mass combination is most likely to be detected?

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