The notation s?1 means __________
Fill in the blank(s) with correct word
per second
Physics & Space Science
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Which of the following objects would produce an emission line spectrum?
A) a hot, low-density neon gas B) a star like our Sun C) a light bulb D) the Earth
Physics & Space Science
The object above a valley floor that consists of glacial ice is called
a. a valley glacier. b. a gulley glacier c. a canyon glacier. d. none of these.
Physics & Space Science
Astronomers know the universe is expanding because
A) everything is moving away from us. B) all stars are moving away from us. C) most galaxies are moving away from us. D) galaxies farther away are moving away from us faster. E) there is a cosmic microwave background.
Physics & Space Science
Seamounts with flat tops are known as ______________
Fill in the blank(s) with correct word
Physics & Space Science