What is the maximum depth from which a pump on the surface can "suck" up water?
What will be an ideal response?
Atmospheric pressure will support a column of water about 10. m high.
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In cathodic protection of a metal structure, the structure is connected to the _________terminal of a battery.
Fill in the blank(s) with the appropriate word(s).
What can we say about stars that contain relatively few amounts of heavy elements?
A.) They are younger than stars with more heavy elements. B.) They are older than stars with more heavy elements. C.) They are the same age as stars with more heavy elements. D.) They are actually brown dwarfs. E.) They are actually white dwarfs.
Both Jupiter and Saturn contain liquid metallic hydrogen
a. True b. False Indicate whether the statement is true or false
What happens when a main-sequence star exhausts its core hydrogen fuel supply?
A) The entire star shrinks in size. B) The core shrinks while the rest of the star expands. C) The core immediately begins to fuse its helium into carbon. D) The star becomes a neutron star.