Answer to Question #163579 in Physics for Sam

Question #163579

5. A neutron star of mass 4.0 x 1030kg has a radius of about 12km. Calculate its mean density . comment on the answer.

Expert's answer

"\\rho=\\frac{m}{V}\\\\\\rho=\\frac{3m}{4\\pi r^3}\\\\\\rho=\\frac{3(4\\cdot10^{30})}{4\\pi (12000)^3}=5.5\\cdot10^{17}\\frac{kg}{m^3}"

Learn more about our help with Assignments: Physics

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. A neutron star of mass 4.0 x 1030kg has a radius of about 12km. Calculate its mean density . comment
2. State how many protons , neutrons , and electrons there are in the atoms of the following isotopes:
3. State how many protons and neutrons there are in a helium -4 nucleus
4. A carbon atom has a mass of 2.00x 10-26kg, an atomic radius of 7.0 x 10-11m, and a nuclear radius
5. A body of mass 40kg is given an acceleration of 10ms on a horizontal ground for which coefficient of
6. Solve the problems and show the complete solution. An electron is released 10.0cm from a very long n
7. Solve the problems and show the complete solution. At the center of a cube of edge 80.0 cm, a charge