Science Homework Help

Need help with my Physics question – I’m studying for my class.

There is relatively little empty space between atoms in solids and liquids, so that the average density of an atom is about the same as matter on a macroscopic scale—approximately 10³ kg/m³. The nucleus of an atom has a radius about 10^-5 times that of the entire atom, and contains nearly all the mass of the atom.

density 10^18

1-One possible remnant of a supernova, called a neutron star, can have the density of a nucleus, while being the size of a small city. What would be the radius, in kilometers, of a neutron star with a mass 10 times that of the Sun? The radius of the Sun is 7 × 108 m and its mass is 1.99 × 1030 kg.

Use the density you found in part (a), and the definition of density and volume for a sphere to find this radius.