A snapshot of the circular speed as a function of the radius in a spin-ning-homogeneous spherical universe was obtained using a mass-dependent characteristic-acceleration in the Modified Newtonian Dynamics (MOND paradigm as a modified 2nd law of Newton) with and without considering the impact of the relativistic speed. To consider the impact of the relativistic speed the Extended Newtonian Theory (ENET), previously developed by the author, was used. The corresponding kinetic energy equation for ENET is however reported in this work for the first time. The speed profile shows a non-linear trend with features that has been experimentally noted before. It was shown that the Hubble law (for circular speeds) can be inferred from the results for a distance range close to the experimental results of the Hubble telescope key project. The calculation considering the impact of the relativistic speeds yields a very distinctive tail towards the edge of the universe that has been noted before. It is striking that a spinning universe model yields (without any reference to dark matter or dark energy) observed features of a universe which, based on photometric and spectral line measurements, is currently interpreted as radially expanding at an accelerated rate.
Hubble, E. (1929) A Relation between Distance and Radial Velocity among Extragalactic Nebulae. Proceedings of the National Academy of Sciences of the United States of America, 15, 168-173. Astronomy. https://doi.org/10.1073/pnas.15.3.168
Zwicky, F. (1929) On the Red Shift of Spectral Line through Interstellar Space. Proceedings of the National Academy of Sciences of the United States of America, 15, 773-779. Physics. https://doi.org/10.1073/pnas.15.10.773
Segal, I.E. and Nicoll, J.F. (1992) Apparent Nonlinearity of the Redshift-Distance Relation in Infrared Astronomical Satellite Galaxy Samples. Pro-ceedings of the National Academy of Sciences of the United States of America, 89, 11669-11672. Astronomy. https://doi.org/10.1073/pnas.89.24.11669