What are the three layers of the Sun's atmosphere, in order of increasing distance from the surface?
a. Corona, chromosphere, photosphere
b. Photosphere, corona, chromosphere
c. Photosphere, chromosphere, corona
d. Chromosphere, photosphere, corona
C
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Series/Parallel Circuits: You obtain a 100-W light bulb and a 50-W light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. If each one is an incandescent bulb of fixed resistance, which statement about these bulbs is correct?
A. Both bulbs glow with the same brightness, but less than their normal brightness. B. Both bulbs glow with the same brightness, but more than their normal brightness. C. The 100-W bulb glows brighter than the 50-W bulb. D. The 50-W bulb glows more brightly than the 100-W bulb.
Where is most of the water that Mars has today?
A) as water vapor in its clouds B) frozen in its polar caps and in subsurface ground ice C) frozen on the peaks of its tall volcanoes D) in subsurface lakes of liquid water E) deeply buried in its core and mantle
A 0.120-pF parallel-plate capacitor is charged to a potential difference of 10.0 V and then disconnected from the battery. A cosmic ray burst creates 1.00 × 106 electrons and 1.00 × 106 positive charges between the plates. If the charges do not recombine, but reach the oppositely charged plates, by how much is the potential difference between the capacitor plates reduced?
A. 1.33 V B. 7.34 V C. 8.67 V D. 1,330 V E. 8,670 V
In the NSOM technique, the letter S stands for:
a. slow. c. scanning. b. small. d. swift.