Strictly speaking, if any electrical device in an automobile is turned on (such as an air conditioner or even headlights), more fuel is consumed by the engine. This statement is
A) true.
B) true only if the engine is running.
C) always false.
D) sometimes true, sometimes false.
Answer: A
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Displacement is
A. the distance traveled from the first position to the final position. B. the distance from the origin to the final position. C. the change of the position vector from the first position the final position. D. the vector from the origin to the final position.
Which of the following radiations has the smallest wavelength?
a. Infrared b. Visible c. Ultraviolet d. X-rays
Reactance: The reactance of a capacitor is 4.0 ? at a frequency of 0.60 kHz. What is the capacitance?
A. 0.066 ?F B. 0.42 ?F C. 2.6 ?F D. 0.093 ?F
The value of a wavelength in the Balmer series is 372.1 nm. What is the corresponding value of n?
A) 6 B) 3 C) 9 D) 10 E) 14