A small cork has an electrostatic charge of -5.7. It feels a repulsive electrostatic force of 8.1*10-3 N from a second cork many extra electrons have been added to or subtracted from the second cork?

well, their are quite a few differences !

explanation:

first difference is a main sequence star is made of carbon, while a neutron star is made of neutrons. another difference is a main sequence star still has hydrogen to burn, while a neutron star is a remnant of a supernova.

a main sequence star is what’s left over from a low-mass star death, while a neutron star is what’s left from the death of a high-mass star. main sequence star and a neutron star are considered the same thing, except a main sequence star spins.