The circuit power factor of an RC circuit is 0.620. The rms value of the ac voltage applied to this signal is 120 V and the impedance is 200 ?. What is the average power of this circuit?
A) 60.0 W B) 0.620 W C) 124 W D) 89.2 W E) 44.6 W
E
You might also like to view...
A high tide is occurring at Charleston, South Carolina (70°W, 12°N). At approximately what other longitude is a high tide occurring?
a. 110°E b. 70°E c. 20°E d. 20°W e. 110°W
In science fiction movies, spaceships are often shown dodging through large numbers of closely spaced, boulder-size objects. Which of the following real things in our solar system would look most like such science fiction dangers?
A) the rings of Saturn B) the asteroid belt C) the Oort cloud D) the atmosphere of Jupiter
A galaxy with little cool gas or dust and no evidence of ongoing star formation is most likely a(n)
A) Seyfert. B) elliptical. C) irregular. D) spiral. E) barred spiral.
A 1000-kg whale swims horizontally to the right at a speed of 6.0 m/s. It suddenly collides directly with a stationary seal of mass 200 kg. The seal grabs onto the whale and holds fast
What is the speed of these two sea creatures just after their collision? You can neglect any drag effects of the water during the collision. A) 0.00 m/s B) 3.0 m/s C) 4.0 m/s D) 5.0 m/s E) 6.0 m/s