The capacitive reactance of a 44-?F capacitor in an ac circuit is 6.0 × 102 ?. 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
D
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A) by measuring the speed at which the star orbits the mutual center-of-mass of the star and planet B) by measuring the time it takes for the star's line-of-sight velocity to cycle from peak to peak C) by measuring the asymmetries in the velocity curve D) by measuring the amount by which the starlight is reduced when the planet transits
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Indicate whether the statement is true or false
When a 24.0-W resistor is connected across a 12.0-V battery, a current of 410 mA flows. What is the internal resistance of the battery?
a. 29.3 W c. 5.3 W b. 0.9 W d. 0.02 W
A piano string of density 0.005 0 kg/m is under a tension of 1 350 N. Find the velocity with which a wave travels on the string
a. 260 m/s b. 520 m/s c. 1 040 m/s d. 2 080 m/s e. 4 160 m/s