The mass of a certain neutron star is 7 × 1030 kg (3.5 solar masses) and its radius is 6000 m?
The mass of a certain neutron star is
7 × 1030 kg (3.5 solar masses) and its radius is 6000 m.
What is the acceleration of gravity at the
surface of this condensed, burned-out star?
The value of the universal gravitational con-
stant is 6.67 × 10−11 N · m2/kg2.
Answer in units of m/s2
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the acceleration of gravity is given by
g = G M/r^2 = 6.67x10^-11Nm^2/kg^2 x 7 x 10^30kg/(6000m)^2 = 1.3 x10^13m/s/s