If you could find a bathtub big enough for Saturn, the planet would:
A) precipitate more helium.
B) float.
C) explode due to its liquid metallic hydrogen.
D) catch fire, as liquid sodium reacts with water.
E) sink due to its metallic interior.
B
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The normal tendency of positive charges is to
A. move to regions of higher electric potential B. move to regions of lower electric potential C. remain stationary in an electric field D. move perpendicularly to electric field lines.
If we say that an object is 1,000 light-years away we see it
a. as it looked 1,000 years ago. b. as it would appear to our ancestors 1,000 years ago. c. as it looked 1,000 light-years ago. d. as it is right now, but it appears 1,000 times dimmer.
Amino acids are organic molecules that contain?
(a)Protein (b)Amino group + carboxyl group (c)Carbohydrates (d)Ethylene + polyethylene •
When an electron drops to a lower energy level in an atom, but no other interactions take place
A) the atom may emit a photon of light of a specific wavelength. B) the total energy of the atom remains unchanged. C) the atom must slow its speed moving through space. D) the atom must increase its speed moving through space. E) the electron must become slightly more massive.