A series RLC circuit has a 100-? resistor, a 0.100-?F capacitor and a 2.00-mH inductor connected across a 120-V rms ac voltage source operating at 1000/? Hz. What is the resonant frequency of this circuit?
A) 70.7 kHz
B) 17.9 kHz
C) 22.5 kHz
D) 35.3 kHz
E) 11.3 kHz
E
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A planar cross section through two spherical waves emanating from the sources S1 and S2 in the plane is shown in the figure. The black circles are one and two wavelengths from their respective sources. The lighter circles are one half and one and a half wavelengths distant from their respective sources. If the phase at S1 and S2 is zero at this instant, and the waves shown arriving at P1 both arrive with amplitude A, the magnitude of the phase angle of each wave at point P1 (in radians) is
A. 0. B. ?. C. 2?. D. 3?. E. ?/2.
A particle is moving at 0.86c. By what magnitude percentage is the Newtonian expression for momentum in error? (The percentage error is the difference between the erroneous and correct expressions, relative the correct one)
A) 49% B) 40% C) 55% D) 62%
A 3.0-kg object and a 5.0-kg object hang vertically at the opposite ends of a rope that goes over an ideal pulley. If the objects are gently released from rest, how long does it take for the 3.0-kg objects to rise by 1.0 m?
A) 0.41 s B) 0.74 s C) 0.82 s D) 1.8 s E) 0.90 s
If the primary colors of the subtractive theory are cyan, magenta, and yellow, why are the colors in the artist's subtractive theory red, blue, and yellow?