Sunlight is absorbed by a black hat.
C. Consistent
D. Inconsistent
D. Inconsistent
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What do we learn by studying chondrites?
a. Earth's early composition b. the history of comets from the Oort cloud c. the different formations of the Terrestrial and Jovian planets d. the steps in planetary differentiation e. the conditions and processes from the early days of the solar nebula
Beats: Two strings both vibrate at exactly 819 Hz. The tension in one of them is then increased slightly. As a result, six beats per second are heard when both strings vibrate. What is the new frequency of the string that was tightened?
A. 825 Hz B. 813 Hz C. 822 Hz D. 816 Hz
Compression cannot produce
A) anticlines. B) synclines. C) normal faults. D) reverse faults.
Resistance and Resistivity: Consider two copper wires of equal length. One wire has twice the cross-sectional area of the other. How do the resistances of these two wires compare?
A. The thicker wire has twice the resistance of the thinner wire. B. The thicker wire has eight times the resistance of the thinner wire. C. The thicker wire has one-half the resistance of the thinner wire. D. The thicker wire has four times the resistance of the thinner wire. E. The thicker wire has one-fourth the resistance of the thinner wire.