____________________ waves are seismic waves that do not travel through Earth's liquid core
Fill in the blank(s) with correct word
S
Stress
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A charged particle is moving with speed v perpendicular to a uniform magnetic field
A second identical charged particle is moving with speed 2v perpendicular to the same magnetic field. If the frequency of revolution of the first particle is f, the frequency of revolution of the second particle is A) f. B) 2f. C) 4f. D) f/2. E) f/4.
Terminal Voltage and Internal Resistance: A battery has an emf ? = 12 V and an internal resistance r = 2.0 ?, as shown in the figure. When a 3.0-? cable is connected across the battery terminals a and b, the rate at which chemical energy in the battery is depleted is closest to
A. 24 W. B. 27 W. C. 29 W. D. 32 W. E. 34 W.
The lowest tone to resonate in an open pipe of length L is 400. Hz. What is the frequency of the lowest tone that will resonate in a closed pipe of length 2L?
A) 200. Hz B) 1.60 kHz C) 100. Hz D) 400. Hz E) 0.800 kHz
A sinusoidal electromagnetic wave in vacuum delivers energy at an average rate of 5.00 µW/m2. What are the amplitudes of the electric and magnetic fields of this wave?
(c = 3.0 × 108 m/s, ?0 = 4? × 10-7 T • m/A, ?0 = 8.85 × 10-12 C2/N • m2)