According to the microwave background radiation Earth is:
A) at the center of the universe.
B) near the location of the Big Bang.
C) in no special location in the universe.
D) in a part of the universe that is just like any other part.
E) moving at about 380 km/s toward Leo.
E
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If Hubble's constant is actually half the value we believe it to be (70 km/(s/Mpc)), the Universe would be
A. four times as old as we think it is. B. half as old as we think it is. C. the same age. D. twice as old as we think it is.
The Leonid meteor shower occurs in mid-November. Which of the following statements regarding the Leonids is true?
A. The shower is best observed very early in the morning, before dawn. B. The radiant of the meteor shower is in the constellation of Leo. C. The shower occurs when Earth crosses the path of an old comet. D. All of these choices are correct.
If the corona is so hot, why must we wait for a total solar eclipse to glimpse it?
What will be an ideal response?
Waves on a lake pass under a floating bird causing the bird to bob up and down with a period of 2.5 seconds. If the distance from wave trough to wave trough is 3.0 meters, what is the speed of the wave?
A) 0.21 m/s B) 1.2 m/s C) 1.9 m/s D) 2.1 m/s E) 1.5 m/s