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A light bulb is connected to a 120 V wall socket. The current in the bulb depends on the time t according to the relation I = (1.414 A) sin[ (125.6 Hz) t ].
(a) What is the frequency of the alternating current?
Hz
(b) What is the resistance of the bulb's filament?
(c) What is the average power delivered to the light bulb?
W
A 90 uF capacitor and a 15m H inductor are in series with a 185 O resistor, What is the resonant frequency
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A transverse pulse moves along a stretched cord of length 5.29 m having a mass of 0.180 kg. If the tension in the cord is 13.4 N, find the following. (a) The wave speed. (b) The time it takes the pulse to travel the length of the cord.
Suppose a Proton is accelerated through a potential difference of 10 Gigavolts. Determine the proton's final kinetic energy
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