Physics, 22.04.2020 03:40 chris4212

Consider a spherical volume of space that is large enough to be considered homogeneous. Also consider a particle on the surface of this volume that is moving away from the center with the Hubble flow. Assuming that the pressure within the volume is negligible, the universe will re-collapse if the particle's Hubble speed is: A. Greater than its escape speed from the mass within the volume B. The same as its escape speed from the mass within the volume C. Less than its escape speed from the mass within the volume

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Consider a spherical volume of space that is large enough to be considered homogeneous. Also conside...