A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 one year ago
A neutron star has a constant density of 6 * 10^27 kg/m^3 and a mass five times that of our Sun. Compare its rotational inertia with that of the Earth (assume constant density). In both cases, the rotation axis is an axis through the center of the sphere.
 one year ago
A neutron star has a constant density of 6 * 10^27 kg/m^3 and a mass five times that of our Sun. Compare its rotational inertia with that of the Earth (assume constant density). In both cases, the rotation axis is an axis through the center of the sphere.

This Question is Closed

Mashy
 one year ago
Best ResponseYou've already chosen the best response.0what about the radius ?!

rajathsbhat
 one year ago
Best ResponseYou've already chosen the best response.0@Mashy you know the density and the mass of the star. you can find the radius.

Diwakar
 one year ago
Best ResponseYou've already chosen the best response.1the ratio of the rotational inertia or the moment of inertia of star to the earth would be m1*(R1)^2/ m2*(R2)^2 m1 is five times the solar mass m2,R2 are the mass and radius of the earth R1 can be calcualted as follows 4/3pi(R1)^3 * d = m1 where d is the density

brinethery
 one year ago
Best ResponseYou've already chosen the best response.0Thank you very much Diwakar. Yeah, I can see where you're going with that last calculation... just multiply volume of the sphere times the density, and volume cancels out, and the only variable left to solve for is r. Thanks so much!
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.