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A typical white-dwarf star, which once was an average star like our Sun but is now in
Chapter 5, Problem 37P(choose chapter or problem)
Problem 37P
A typical white-dwarf star, which once was an average star like our Sun but is now in the last stage of its evolution, is the size of our Moon but has the mass of our Sun. What is the surface gravity on this star?
Questions & Answers
QUESTION:
Problem 37P
A typical white-dwarf star, which once was an average star like our Sun but is now in the last stage of its evolution, is the size of our Moon but has the mass of our Sun. What is the surface gravity on this star?
ANSWER:
Solution 37P
Step 1 of 2
We have to find the surface gravity of a white dwarf star.
The acceleration due to gravity on the surface of a white dwarf star is given by the expression,
Where,
Universal gravitational constant
= Nm2/kg2
Mass of the dwarf star in kg
Radius of the dwarf star in m