Author Question: One line of evidence supporting the big bang theory is A) the nuclear fission products observed ... (Read 85 times)

tsand2 · **on:** Jul 29, 2018

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.

Question 2

A toy rocket that weighs 10 N blasts straight up from ground level with an initial kinetic energy of 40 J. At the exact top of its trajectory, its total mechanical energy is 140 J.

To what vertical height above the ground does it rise, assuming no air resistance?
A) 10 m B) 24 m C) 1.0 m D) 14 m