# Question

The experimental expression for the (approximate) radius (R) of a nucleus is R = RoA1/3, where and A is the mass number of the nucleus. Assuming that nuclei are spherical (they are approximately so in many cases),

(a) Determine the average nucleon density in a nucleus in units of and

(b) Estimate the nuclear density in kg/m3. Are you surprised at the magnitude of your answer?

(c) A neutron star is the last phase of evolution for some types of stars. Typically, a neutron star has a diameter of 15 km and a mass twice that of our Sun. Determine the average density of a typical neutron star and compare it to your answer to part (b). What can you conclude about the structure of the neutron star and how it got its name?

(a) Determine the average nucleon density in a nucleus in units of and

(b) Estimate the nuclear density in kg/m3. Are you surprised at the magnitude of your answer?

(c) A neutron star is the last phase of evolution for some types of stars. Typically, a neutron star has a diameter of 15 km and a mass twice that of our Sun. Determine the average density of a typical neutron star and compare it to your answer to part (b). What can you conclude about the structure of the neutron star and how it got its name?

## Answer to relevant Questions

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