Certain neutron stars (extremely dense stars) are believed to be rotating at about 0.56 rev/s. If such a star has a radius of 48 km, what must be its minimum mass so that material on its surface remains in place during the rapid rotation

d) the number of neutrons plus the number of protons

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19