Which of the following sound frequencies lie(s) in the audible range?
a. 26 Hz
b. 27 kHz
c. 1 MHz
d. All of these
a
Physics & Space Science
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If an AC circuit consists of a 220 mH inductor in series with a 25 pF capacitor and an AC generator with rms voltage of 12 V. If the frequency of the generator is 55 kHz, what will the rms voltage drop across the capacitor be?
A. 5.4 V B. 0.20 V C. 6.6 V D. 11.80 V
Physics & Space Science
A 20-mF capacitor is attached across a 1000-V power supply. What is the net charge on the capacitor?
a. 20 mC c. 10 mC b. 40 mC d. none of these choices
Physics & Space Science
Microscopic slush in water tends to make the water
A) more dense. B) less dense. C) slipperier. D) warmer.
Physics & Space Science
The mass of a galaxy can be estimated using Newton's modification of Kepler's Third law.
Answer the following statement true (T) or false (F)
Physics & Space Science