Thursday
March 23, 2017

Post a New Question

Posted by on Wednesday, February 3, 2010 at 11:15pm.

Certain neutron stars (extremely dense stars) are believed to be rotating at about 100 rev/s. If such a star has a radius of 10 km, what must be its minimum mass so that material on its surface remains in place during the rapid rotation?

  • physics - , Thursday, February 4, 2010 at 12:13am

    Assuming gravity is the force holding it together,

    F=GMassStar*mass2/radius^2 where mass2 is the chunk wanting to fall off.
    But
    F= mass2 v^2/r

    set them equal, find massStar.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question