The Big Bang theory can explain
A. the relative abundance of helium in the Universe
B. the expansion of the Universe
C. the cosmic microwave background radiation
D. All of these choices are correct.
Answer: D
You might also like to view...
A ball is projected upward at time t = 0.00 s, from a point on a roof 70 m above the ground and experiences negligible air resistance. The ball rises, then falls and strikes the ground. The initial velocity of the ball is 28.5 m/s
Consider all quantities as positive in the upward direction. The velocity of the ball when it is 39 m above the ground is closest to A) -38 m/s. B) -30 m/s. C) -23 m/s. D) -15 m/s. E) -45 m/s.
If a weighted air-filled balloon sinks in deep water, it will
A) likely sink to an equilibrium level before reaching bottom. B) likely burst if water pressure is great enough. C) be acted on by a continuously decreasing buoyant force. D) none of the above
How do we know that there can only be insignificant amounts of dark matter in our solar system?
What will be an ideal response?
What happens when an interstellar cloud fragment shrinks?
A) It first becomes opaque. B) Density rises. C) Temperature rises. D) Pressure rises. E) All of the above.