A series RLC circuit has a 100-? resistor, 2.0-mH inductor and a 4.0-?F capacitor connected across a 120-V rms AC source at (1000/?) Hz. What is the power factor of this circuit?

A) 0.54
B) 0.64
C) 0.74
D) 0.84
E) 0.94


B

Physics & Space Science

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The use of wave fronts and rays to describe optical phenomena is called

A) wave optics. B) geometrical optics. C) dispersive optics. D) quantum optics.

Physics & Space Science

CH3COOH is the structural formula for the compound named ______________

Fill in the blank(s) with correct word

Physics & Space Science

In general, which of the following is usually the strongest bond?

A) van der Waals bond B) ionic bond C) hydrogen bond

Physics & Space Science

An aquarium contains a 5-cm layer of water (n = 1.33) floating on top of carbon tetrachloride (n = 1.461). If the angle of incidence into the water from the air is 30°, what is the angle of refraction into the carbon tetrachloride?

a. 58° b. 69° c. 37° d. 20° e. 75°

Physics & Space Science