Posted by **Marcus Jasp** on Thursday, August 4, 2005 at 12:33am.

Hi, i'm having problem w/ this question...i've tried everything i know and i still don't get the right answer...here's the info they give:

Consider a neutron star of mass M = 1.99e+30kg and a radius of R = 10 km.

They ask 3 question...two of which i have answered (1st:gravitional acceleration near the surface of the star, i found to be 1.33e12 m/s/s and 2nd: found the velocity of an object if it was 1.1 m away from the surface of the star to be 1.71e6 m/s.) but the question that i haven't been able to answer is this: Assuming uniform density, how much would 1.1 cubic centimeters of neutron star material weigh on the surface of the earth?

HELP!!!....i got this far..desity of the star w/ radius 10 km..1.99e+30kg/4.19e12 (meters cubed) = x (kg)/1e-6 (meters cubed) and then the answer from that i multiplied by 9.81...but that's not the right answer...what am i doing wrong??

sorry i finally found the answer...i just made some errors in the unit conversion

## Answer This Question

## Related Questions

- physics - The volume of a neutron is about 10−45 cubic meters. Suppose you...
- Chemistry - Neutron stars are composed of solid nuclear matter, primarily ...
- physics - Assume that the mass of a neutron star is 1.5 times that of the Sun ...
- chemistry - Assuming that a neutron star has the same density as a neutron, ...
- chemistry - assuming that a neutron star has the same density as a neutron, ...
- physic - Neutron stars are extremely dense objects with a mass comparable to the...
- physics (Newton's Law of gravitation) - I need help with this question until the...
- Physics - The mass of a certain neutron star is 1 × 1031 kg (5 solar masses) and...
- Physics - The mass of a certain neutron star is 1 × 1031 kg (5 solar masses) and...
- Physics - The mass of a certain neutron star is 5 × 10^30kg (2.5 solar masses) ...

More Related Questions