A simple pendulum of length 2.00 m has a mass of 100 g attached. It is drawn back 30.0° and then released. What is the maximum speed of the mass?
a. 1.14 m/s
c. 2.29 m/s
b. 4.58 m/s
d. 1.62 m/s
C
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A series circuit consists of a 50-Hz ac source, a 50-? resistor, a 0.50-H inductor, and a 60-?F capacitor. The rms current in the circuit is measured to be 3.1 A. What is the voltage amplitude of the source?
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If an electron is accelerated through a potential difference of 500 V between two parallel plates separated by a distance of 2.0 cm. The change in kinetic energy of the electron during this motion is
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