Write an essay about the expected life cycle of a star the mass of our Sun....

Write an essay about the expected life cycle of a star the mass of our Sun. Please include the following in your discussion • molecular cloud • protostar • main sequence • red giant branch • horizontal branch • asymptotic branch • planetary nebula • white dwarf

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genius_generous answered 1 year ago

Suppose a star the size of our Sun, but with mass 5.0 times as great, were...

Suppose a star the size of our Sun, but with mass 5.0 times as great, were rotating at a speed of 1.0 revolution every 18 days. If it were to undergo gravitational collapse to a neutron star of radius 14 km , losing three-quarters of its mass in the process, what would its rotation speed be? Assume also that the thrown- off mass carries off either part a. no angular momentum part b. its proportional share three-quarters of the initial...

A neutron star has a mass of 3.35 × 1030 kg (about the mass of our...

A neutron star has a mass of 3.35 × 1030 kg (about the mass of our sun) and a radius of 6.09 × 103 m. Suppose an object falls from rest near the surface of such a star. How fast would it be moving after it had fallen a distance of 0.013 m? (Assume that the gravitational force is constant over the distance of the fall, and that the star is not rotating.)

Consider a star has the same central conditions as our Sun: - assuming that the core...

Consider a star has the same central conditions as our Sun: - assuming that the core is comprised of hydrogen, what is the extent of ionisation in the core due to the temperature? - sometimes an approximation is made that the entire core of the star is entirely ionised, comment on the validity of this assumption.?

Write about westernized elements in life; westernization in our life, and this includes Americanization

Our Sun, with mass 2.00×1030 kg, revolves about the center of the Milky Way galaxy, which...

Our Sun, with mass 2.00×1030 kg, revolves about the center of the Milky Way galaxy, which is 2.20×1020 m away, once every 2.50×108 years. Assuming that each of the stars in the galaxy has a mass equal to that of our Sun, that the stars are distributed uniformly in a sphere about the galactic center, and that our Sun is essentially at the edge of that sphere, estimate roughly the number of stars in the galaxy.

Why does a star that has 8 times the mass of the Sun have a shorter...

Why does a star that has 8 times the mass of the Sun have a shorter lifetime on the Main Sequence than a star that has a mass of 2 times the mass of the Sun?

1. The Lifetime of the Sun. The total mass of the sun is about 2 x...

1. The Lifetime of the Sun. The total mass of the sun is about 2 x 1030 kg, of which about 75% was hydrogen when the sun formed. However, only about 13% of this hydrogen ever becomes available for fusion in the core. The rest remains in layers of the sun where the temperature is too low for fusion. a) Use the given data to calculate the total mass of hydrogen available for fusion over the lifetime of the...

Our sun will first become a red giant star when it leaves the Main Sequence, as...

Our sun will first become a red giant star when it leaves the Main Sequence, as it goes from core Hydrogen burning to shell Hydrogen burning. After it has exhausted all of the fusion reactions possible, perhaps some Helium fusion in there as well, it will leave a corpse called a White Dwarf, where there is a crystalline core of carbon and mixed ash products, surrounded by

Write an essay in our own words about: The capital budget and risk · The importance...

Write an essay in our own words about: The capital budget and risk · The importance of the issue for the managerial finance · Why should know about it? · What use is the theme for a financial manager?

Multiple choice: Which one of the following statements about our Sun is true? (a) The Sun...

Multiple choice: Which one of the following statements about our Sun is true? (a) The Sun consists primarily of hydrogen and helium. (b) The Sun is a very active star, blasting waves of energy, solar flares, and winds continuously and uniformly with time. (c) The apparent motion of sunspots on the Sun is caused mainly by Earth’s orbit. (d) Being an uncharged (i.e., neutral) star, the Sun does not have a significant magnetic field. (e) Sunspots were first discovered recently,...

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