Find the power
A coil can be considered to be a resistance of 120 ohms and an inductance of 0.5 H in series. The coil is connected across a 180 V rms, 75 Hz line. Find the power.
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How fast (in rpm) must a centrifuge rotate if a particle 8.06 cm from the axis of rotation is to experience an acceleration of 79000 g?
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A transformer operating from 61 V (rms supplies a 16.1 V lighting system for a garden. Eight lights, each rated 62 W, are installed parallel. Find the equivalent resistance of the system.
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A 0.50 kg ball that is tied to the end of a 2.0 m light cord is revolved in a horizontal plane with the cord making a 30° angle, with the vertical. If the cord can withstand a maximum tension of 9.7 N, what is the highest speed at which the ba
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A charge moves a distance of 2.3 cm in the direction of a uniform electric field having a magnitude of 239 N/C. The electrical potential energy of the charge decreases by 72.3544 × 10-19 J as it moves. Find the magnitude of the charge on the
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