  Model of Expansive Nondecelerative Universe (ENU) due to involving Vaidya
metric makes it possible to localize the energy density of gravitational field.
This its capability allows for answering several open questions and supporting
(or contradicting) results obtained using different theoretical approaches.
This paper is aimed to contributing to a solution of some cosmological
problems, in particular those linked to the Yukawa potential consequences,
independent way of dark matter estimation, ionospheric F2 layer behaviour, and
cyclotron radiation.
