The ____ couples convection in the liquid core with Earth's rotation to produce electric currents that are believed to be responsible for Earth's magnetic field
a. albedo
b. bow shock
c. axis rotation
d. convection currents
e. dynamo effect
e
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The six face-centered lattice points of a FCC lattice unit cell contribute ______________lattice point(s) to a unit cell.
Fill in the blank(s) with the appropriate word(s).
An ac source of maximum voltage V0 = 30 V is connected to a resistor R = 50 ?, an inductor L = 0.6 H, and a capacitor C = 20 ?F
What is the maximum charge on the capacitor when the frequency of the source is set to the resonance frequency of the circuit? A) 1.0 mC B) 0 C) 2.1 mC D) 4.2 mC E) 8.4 mC
A 120-V rms signal at 60.0 Hz is applied across a 30.0-mH inductor and a 100-? resistor. What is the rms value of the voltage across the resistor?
A) 119 V B) 60.0 V C) 100 V D) 110 V E) 0.700 V
The observed relativistic length of a super rocket moving by the observer at 0.70c will be what factor times that of the measured rocket length if it were at rest?
a. 0.55 b. 0.71 c. 0.51 d. 1.4 e. 1.8