Series Resonance: In an RLC ac circuit, the values of the inductance and capacitance are both doubled. As a result of this change, the resonance frequency of the circuit is
A. the same as before.
B. reduced to one-half the original value.
C. reduced to one-fourth the original value.
D. twice the original value.
E. four times the original value.
Answer: B
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A) spectrometer to detect the spectral signature of liquid water at and beneath the surface B) camera to observe the formation and breakup of icebergs on the surface C) projectile to break the thin icy crust to reveal the water below D) laser altimeter to detect the regular bulging of the thin icy crust on top of the ocean due to tidal forces
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What will be an ideal response?
Use the Gibbs phase rule
A uniform rod is 2.0 m long. The rod is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest at the horizontal position. What is the angular acceleration of the rod at the instant the rod makes an angle of 70° with the horizontal?
A. 3.7 rad/s2 B. 1.3 rad/s2 C. 2.5 rad/s2 D. 4.9 rad/s2 E. 1.9 rad/s2