A giant molecular cloud is 30 pc in diameter and has a density of 339 hydrogen molecules/cm^3. What is it's mass in units of solar masses? (notes: the volume of a sphere is 4/3pieR^3, and the mass of a hydrogen atom is 1.67 x 10^-27kg. A hydrogen molecule consists of 2 H atoms
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A giant molecular cloud is 30 pc in diameter and has a density of 339 hydrogen molecules/cm^3. What is it's mass in units of solar masses? (notes: the volume of a sphere is 4/3pieR^3, and the mass of a hydrogen atom is 1.67 x 10^-27kg. A hydrogen molecule consists of 2 H atoms
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- If an open cluster contains 650 stars and is 27 pc in diameter, what is the average distance between the stars? (Hint: On average, what share of the volume of the cluster surrounds each star?)If an open cluster contains 350 stars and is 48 pc in diameter, what is the average distance between the stars? On average what, share of the volume of the cluster surrounds each star?What evidence is there that star formation has occurred recently?
- Can you please help with Part 2 of 2? Thank you.If a giant molecular cloud is 38 pc in diameter and a shock wave can sweep through it in 6 million years, how fast is the shock wave going in kilometers per second? (Notes: 1 pc = 3.1 1013 km; 1 yr = 3.2 107 s.) answer in km/sIf a giant molecular cloud has a mass of 2.0 ✕ 1035 kg, and it converts 8 percent of its mass into stars during a single encounter with a shock wave, how many stars can it make? Assume the stars each contain 1 solar mass. (Hint: The mass of the Sun is 1.99 ✕ 1030 kg.)
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