# physics

posted by .

What is the magnitude of the gravitational field at the surface of a neutron star whose mass is 1.60 times the mass of the Sun and whose radius is 10.5 km?

• physics -

What is wrong with using Newton's Gravitational equation?

graviatational field g= G Ms*1.60/(10.5E3)^2

• physics -

mass of the sun is 1.99E30 kg.
so the mass of the neutron star is 3.184E30 kg.
i solved for g using g=GM/R^2
what is s?
i solved for g using my equation and got 1.93E18 m/s^2. is that right?

• physics -

The "s" is meant to be a subscript to M, representing the mass of the sun.

It looks like you did it correctly.

## Similar Questions

1. ### physic

Neutron stars are extremely dense objects with a mass comparable to the mass of the sun but a radius of only several thousand meters. Consider a neutron star of mass M = 1.99e+030 kg and a radius of R = 10 km. g = 1.3279e12 m/s Assuming …
2. ### Physics

Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun but a much smaller diameter. If you weigh 665N on the earth, what would be your weight on the surface of a neutron star that has the …
3. ### Physics

Find the approximate gravitational red shift in 500 nm light emitted by a compact star whose mass is that of sun but whose radius is 10 km.
4. ### Physics

Find the approximate gravitational red shift in 500 nm light emitted by a compact star whose mass is that of sun but whose radius is 10 km.
5. ### Physics

Find the approximate gravitational red shift in 500 nm light emitted by a compact star whose mass is that of sun but whose radius is 10 km.
6. ### physics

Find the approximate gravitational red shift in 500 nm light emitted by a compact star whose mass is that of sun but whose radius is 10 km.
7. ### Physics

What is the magnitude of the gravitational field at the surface of a neutron star whose mass is 1.64 times the mass of the Sun and whose radius is 9.1 km?
8. ### physics

A neutron star has a mass of 1.27 × 1030 kg (about the mass of our sun) and a radius of 6.47 × 103 m. Suppose an object falls from rest near the surface of such a star. How fast would it be moving after it had fallen a distance of …
9. ### physics

Assume that the mass of a neutron star is 1.5 times that of the Sun and the radius of the neutron star is 10 km. Ignore effects of Special Relativity. What is the approximate speed at which an object released from far away (at zero …
10. ### Physics

If the gravitational force on you is 670N on the earth, how strong is the gravitational force on you on the surface of a neutron star that has the same mass as our sun and a diameter of 20.0km ?

More Similar Questions