Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 7.9 x 1028 kg and 1.7 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 10-7 m3) were made from this material, how much would it weight (in pounds)?