Studies of remanent magnetism in rocks spreading from the Mid-Atlantic Ridge reveal symmetric bands of magnetic anomalies. These anomalies provide
a. support for the idea of continental drift.
b. evidence of Earth's magnetic pole reversals.
c. both (A) and (B).
d. neither (A) nor (B).
c
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A thin, circular disk of radius 30.0 cm is oriented in the yz-plane with its center at the origin. The disk carries a total charge of +3.00 ?C distributed uniformly over its surface
Calculate the magnitude of the electric field due to the disk at the point x = 15.0 cm along the x-axis. (?0 = 8.85 × 10-12 C2/N ? m2) A) 9.95 × 105 N/C B) 4.98 × 105 N/C C) 3.31 × 105 N/C D) 2.49 × 105 N/C E) 1.99 × 105 N/C
The average radiation dose received from radon in the home is ________
a. less than a dental x-ray dose. b. comparable to that from a nuclear plant c. very dependent upon local geology d. larger in older homes
An AM radio tuning circuit has a coil with an inductance of 3.93 mH and a capacitor set at 5.68 × 10^?12 F. What frequency will it detect?
a. 8.90E+5 Hz b. 1.07E+6 Hz c. 1.78E+6 Hz d. 1.70E+5 Hz e. 5.33E+5 Hz
The maximum number of electron states with a principal quantum number n = 3 is 15
Indicate whether the statement is true or false