1. (OpenStax 22.10) Gravity always tries to collapse the mass of
a star toward its center. What
mechanism can oppose this gravitational collapse for a:
a) Main sequence star?
b) White dwarf?
c) Neutron star?
Answer:
During the whole main sequence stage star remains in the balanced condition Because Gravity always tries to collapse the mass of a star toward its center, which increases the pressure at core which in turn leads to the fusion of hydrogen to helium. This newly formed helium will apply outward pressure. This pressure balances the gravitational inward Pull. This is called 'Hydrostatic equilibrium'
1. (OpenStax 22.10) Gravity always tries to collapse the mass of a star toward its center....
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After our Sun exhausts its nuclear fuel, its ultimate fate may be to collapse to a white dwarf state, in which it has approximately the same mass as it has now but a radius equal to roughly the size of the Earth's radius. (a) Calculate the average density of this white dwarf if the Sun were to collapse to a radius of 6.25 x 10°m. kg/m (b) Calculate the free-fall acceleration at its surface. m/s2 (c) Calculate the gravitational potential...
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