Reactance: The capacitive reactance of a 44-?F capacitor in an ac circuit is 6.0 × 10-2 ?. What is the frequency of the applied signal?
A. 80 Hz
B. 17 Hz
C. 800 Hz
D. 6.0 Hz
E. 2.2 Hz
Answer: D
Physics & Space Science
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By what factor does the volume of a cube increase if the length of the edges are doubled?
A. 2 B. 4 C. 6 D. 8
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Bright blue stars are typical of young ________ star clusters
Fill in the blank(s) with correct word
Physics & Space Science
The oldest-known smelted iron dates to approximately what year?
(a) 27,000 BCE (b) 6000 BCE (c) 2500 BCE (d) 1000 BCE
Physics & Space Science