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A block of mass 30.00 g on the end of spring undergoes simple harmonic motion with a frequency of 6.50 Hz.
a) What is the spring constant of the spring?
b) If the motion of the mass has an initial amplitude of 5.50 cm what is its maximum speed?
c) The amplitude decreases to 1.224 cm in 1.54 s, what is the damping constant for the system?
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A series AC circuit contains a resistor, an inductor of 210 mH, a capacitor of 5.10 µF, and a source with ?Vmax = 240 V operating at 50.0 Hz. Calculate the resistance in the circuit
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