Posted by Steve on .
The mass of a certain neutron star is 3.0 1030 kg (1.5 solar masses) and its radius is 7550 m. What is the acceleration of gravity at the surface of this condensed, burnedout star?

Physics HELP!! 
drwls,
G*M*R^2,
where G is Newton's universal constant of gravity.
M = 3.0*10^30 kg
R = 7550 m
Use ^ signs before your exponents