Which layer of the Sun do we see with our eyes?
A) photosphere
B) corona
C) chromosphere
D) convection zone
E) radiation zone
A) photosphere
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Use the appropriate relativity formula given in the text to answer the following: Isabella is moving by you at a speed of 0.8c. While 1 minute passes on your watch, how much time will you see pass on her watch?
A) 36 seconds B) 1 minute C) 48 seconds D) 100 seconds
Why do we believe the Cambrian explosion occurred so suddenly?
A) oxygen concentrations reached critical levels necessary to support more complex life B) organisms became sufficiently complex that more diversity became possible C) climate change due the end of the last snowball Earth phase D) all of these
All three circuits shown below have R = 100 ?, L = 0.1 H and emf ? = (5.0 V) sin (377 t). Which statement regarding the angular resonance frequencies ?A, ?B, and ?C is correct?
?
?
A. ?C>?A = ?B B. ?C
Just as water flows from high to low pressure, electric charge flows from
A) high to low voltage. B) high charge concentration to low charge concentration. C) high resistance to low resistance. D) all of the above E) none of the above