What Einstein discovered about space and time is that they
A) are separate entities.
B) are parts of one whole.
C) follow an inverse-square law.
D) are special to space travelers.
Answer: B
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Video 2 (Chapter 19): If you have a short focal length converging lens what can be said about the power of the lens?
A. The power is large and positive B. The power is small and positive C. The power is small and negative D. The power is large and negative.
How is it possible for the angular magnification to be large and, at the same time, for the lateral magnification to be small? Give an example
What will be an ideal response?
A resistor, inductor, and capacitor are connected in series, each with an effective (rms) voltage of 63 V, 176 V, and 65 V, respectively. What is the magnitude of the phase angle in this circuit?
a. 30° b. 64° c. 59° d. 60° e. 69°
A 0.500-H inductor is connected into a 110 V-rms 60.0-Hz voltage source, with an ammeter in series. What is the rms value of the current through the inductor?
a. 0.189 A (rms) b. 0.292 A (rms) c. 0.584 A (rms) d. 1.19 A (rms) e. 0.093 A (rms)