Which one of the words below is a name for a type of galaxy in the Hubble classification system?
a. red giant
b. visual
c. spiral
d. 21-centimeter
e. statuesque
c
Physics & Space Science
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The basic molecular building blocks of proteins are
A) nucleotides B) fatty acids C) amino acids D) monosaccharides
Physics & Space Science
At the top of the distance ladder sits ________
Fill in the blank(s) with correct word
Physics & Space Science
What is true of galaxies at the larger redshifts compared to ones nearby?
A) They are mostly giants. B) They are redder. C) They appear smaller and more irregular. D) They are almost all ellipticals. E) They appear larger and more regular.
Physics & Space Science
For a wave on the ocean, the amplitude is:
a. the distance between crests. b. the height difference between a crest and a trough. c. one half the height difference between a crest and a trough. d. how far the wave goes up on the beach.
Physics & Space Science