I am in deperate need of help Physics

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In summary, the conversation discusses the potential fate of the sun as a white dwarf and provides calculations for its average density, free fall acceleration, and gravitational potential energy. The person asking for help is initially lost but eventually finds their way with the help of class notes and additional research.
  • #1
aliciagu
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I am in deperate need of help! Physics

The question:
after our sun exhausts its nuclear fuel, its ulitmate 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 the radius of the earth. Calculate: The average density of the white dwarf; the free fall acceleration; the gravitational potential energy associated with a 1.00-kg object on its surface.

I don't even know where to start. I'm lost. PLEASE HELP!
 
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  • #2
aliciagu said:
I don't even know where to start. I'm lost. PLEASE HELP!
Read your class notes and look up the mass of the sun and the radius of the earth.
 
  • #3
Thanks! That got me started. I don't know where my head is at today! I think I've got the rest.
 

1. What is physics?

Physics is the branch of science that deals with the study of matter, energy, and their interactions. It seeks to understand and explain the fundamental principles that govern the universe.

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