What is the potential difference across C2 when C1 = 5.0 ?F, C2 = 15 ?F, C3 = 30 ?F, and V0 = 24 V?
A. 21 V
B. 19 V
C. 16 V
D. 24 V
E. 8.0 V
Answer: C
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Standing Sound Waves: One of the harmonics of a column of air in a tube that is open at one end and closed at the other has a frequency of 448 Hz, and the next higher harmonic has a frequency of 576 Hz. How long is the tube? The speed of sound in air is 343 m/s.
A. 1.34 m B. 0.670 m C. 0.335 m D. 1.00 m E. 2.68 m