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The ultimate source of energy that powers the sun is ________.

 

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Sagar Yadav
Sagar YadavLv10
28 Mar 2021
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

The nuclear reaction that powers the sun is the fusion of fourprotons into a helium nucleus. The process involves several steps,but the net reaction is simply 4p->He + energy. The mass of ahelium nucleus is known to be 6.64*10^-27kg.

a) How much energy is released in each fusion?

b)What fraction of the initial rest mass energy is thisenergy?

The nuclear reaction that powers the sun is the fusion of fourprotons into a helium nucleus. The process involves several steps,but the net reaction is simply 4p->He + energy. The mass of ahelium nucleus is known to be 6.64*10^-27kg.

a) How much energy is released in each fusion in joules?

b)What fraction of the initial rest mass energy is this energy(percentage)?

After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. In this state, it would have approximately the same mass as it has now, but its radius would be equal to the radius of the Earth.

(a) Calculate the average density of the white dwarf,

(b) Calculate the surface free-fall acceleration, and

(c) Calculate the gravitational potential energy associated with a  object at the surface of the white dwarf.

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