What is the temperature of the gas in the dark dust clouds, and why is this important to molecule formation?
What will be an ideal response?
The gas is about 100K, cold enough that atoms collide gently and stick together to form molecules.
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Brown dwarfs are failed stars, never igniting their hydrogen fusion
Indicate whether the statement is true or false
The combined mass of all the asteroids in the asteroid belt is
A) less than that of any terrestrial planet. B) about the same as that of Earth. C) about twice that of Earth. D) about the same as that of Jupiter. E) more than that of all the planets combined.
What is the surface temperature of a star, if its radiation peak occurs at a frequency of 1.06 × 1015 Hz? (c = 3.00 × 108 m/s, and the constant in Wien's law is 0.00290 m ? K)
A) 17,000 K B) 14,500 K C) 19,000 K D) 20,400 K E) 10,200 K
as a star becomes a giant, its outer layers are expanding. where does the energy for expanding these layers come from?
What will be an ideal response?