The "aspect ratio" of thickness to width of the Galactic disk is about
A) 1:2.
B) 1:5.
C) 1:10.
D) 1:100.
E) 1:1,000.
D
Physics & Space Science
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Potential: If it takes 50 J of energy to move 10 C of charge from point A to point B, what is the magnitude of the potential difference between points A and B?
A. 500 V B. 50 V C. 5.0 V D. 0.50 V
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Most of the new star formation in the Galaxy is found in the
A) halo. B) spiral arms. C) bulge. D) Galactic center. E) globular clusters.
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At what point does the accretion process turn a clump of debris into a planetesimal?
What will be an ideal response?
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An atomizer works because of
a. Archimedes' principle b. Pascal's principle c. Bernoulli's principle d. Torricelli's principle e. none of these principles
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