If we could see our own galaxy from 2 million light-years away, it would appear
A) as a flattened disk with a central bulge and spiral arms, spanning a few degrees across the sky.
B) as a faintly glowing band of light stretching all the way around the sky.
C) to fill the sky with widely spaced stars.
D) like a single, dim star.
A) as a flattened disk with a central bulge and spiral arms, spanning a few degrees across the sky.
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The Milky Way can be seen only from the Northern Hemisphere
Indicate whether the statement is true or false
If the principal quantum number for hydrogen is 7, which one of the following is not a permitted orbital magnetic quantum number for that atom?
a. 10 b. –2 c. 0 d. 5 e. 3
What type of faulting is expected along transform faults?
a. Reverse b. Forward c. Strike-slip d. Normal
Power: How many joules of energy are used by a 2.0 hp motor that runs for 1.0 hour? (1 hp = 746 W)
Fill in the blank(s) with the appropriate word(s).