About where is our solar system located within the Milky Way Galaxy?
A) at the center of the galaxy
B) about 10 percent of the way from the center of the galaxy to the outskirts of the galactic disk
C) about half way from the center of the galaxy to the outskirts of the galactic disk
D) near the far outskirts of the galactic disk
E) in the halo of the galaxy above the galactic disk
C
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Saturn is the only planet with a ring system
Indicate whether the statement is true or false
Which one of the following scientists made the theoretical prediction that electromagnetic waves travel through a vacuum at the speed of light?
a. Hertz b. Faraday c. Maxwell d. Lenz
Uranium-238 decays into lead-206 with a half-life of 4.5 billion years. Suppose you found a rock in which only 1/4 of the original uranium-238 remained (the other ¾ having become lead-206). How old would the rock be?
A) 9 billion years B) 4.5 billion years C) 2.25 billion years D) 13.5 billion years
One way to correct chromatic aberration is to
A. Use white light B. Use 2 converging lenses C. Use a converging lens and a diverging lens D. Only allow light to go through the center of the lens