One line of evidence supporting the big bang theory is
A) the nuclear fission products observed in our galaxy are just what is predicted by the big bang theory.
B) the density of galaxies observed in the universe is just what is predicted by the big bang theory.
C) the observed abundance of very heavy elements in our galaxy is just what is predicted by the big bang theory.
D) neutron stars have just the masses and frequencies of rotation that are predicted by the big bang theory.
E) the observed abundance of very light elements in our galaxy is just what is predicted by the big bang theory.
E
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A changing magnetic flux through a closed loop of wire induces an emf in that loop
Indicate whether the statement is true or false
In 2015, gravity waves were observed using which device?
a. The Large Hadron Collider b. The Sudbury Graviton Observatory c. The Laser Interferometer Gravitational-Wave Observatory d. The Superconducting Super Collider
What is an alpha particle?
a. A hydrogen atom. b. A helium atom. c. A hydrogen atom without its electrons (and therefore having one unit of positive charge). d. A helium atom without its electrons (and therefore having two units of positive charge). e. A deuterium nucleus (with one proton and one neutron).
The _______________ of the moon is the period of time for the moon to complete a cycle of the lunar phases and is approximately 29.5 days long
a. sidereal period b. saros cycle c. synodic period d. eclipse season e. umbral period