Consider a white dwarf and a nutron star beach of one solar mass. The radius of the white dwarf is same as that of the eartyh (=6400km) and the radius of the neutron star is 10 km. Determine the densities of the two types of the stars. Take mass of the sun `=2.0xx10^(30)`kg.

Density of a neutron star is 2.7xx10^(17)kg m^(-3) . Assume the star to be spherical, calculate the radius of the neutron star if its mass is twice the mass of the sun. Take mass of the sun =2.0xx10^(30)kg

A neutron star has a density equal to that of the nuclear matter. Assuming the staar to be spherical, find the radius of a neutron star whose mass is 4.0xx10^30 kg (twice the mass of the sun ).

A neutron star has a density equal to that of the nuclear matter. Assuming the staar to be spherical, find the radius of a neutron star whose mass is 4.0xx10^30 kg (twice the mass of the sun ).

A neutron star has a density equal to that of the nuclear matter. Assuming the staar to be spherical, find the radius of a neutron star whose mass is 4.0xx10^30 kg (twice the mass of the sun ).

Consider a binary star system consisting of two stars of masses M_(1) and M_(2) separated by a distance of 30AU with a period of revolution equal to 30 years. If one of the two stars is 5 times farther from the centre of mass than the other, show that the masses of the two stars are 5 and 25 times that of the sun.

A neutron starj has a density equal to theat of nuclear matter (~= 2.8xx10^(17) kg//m^3). Assuming the star to be spherical, find the radius of the neutron star whose mass is 4.0xx10^(30)kg.

Find the ratio of escape velocities from the earth and the moon. (Mass of the earth = 6.0 xx 10^24 kg, Radius of the earth = 6400km, Mass of the moon = 7.4 xx 10^22 kg Radius of the moon 1740 km.)

At what angular speed of rotation is the surface material on the equator of a neutron star on the verge of flying off the star if the star is spherical with a radius of 18.0 km and a mass of 7.72 xx 10^24 kg?