An LRC series circuit has voltage supplied to it at a frequency of 13.0 kHz with a phase difference between the current and the voltage of magnitude 0.20 rad.
If the circuit has a capacitance of 5.0 F and an inductance of 0.050 H find the resistance of the circuit.
A) 0.32 k B) 9.0 k C) 0.99 k D) 20 k
Question 2
In a certain chemical reaction, 8.1 10-19 J of energy is released per molecule formed.
What is the difference in mass per molecule between the sum of the masses of the molecules of the reagents before the reaction and the mass of the molecules produced by the reaction? (c = 3.0 108 m/s)
A) 2.7 10-27 kg
B) 8.1 10-28 kg
C) 9.0 10-36 kg
D) 5.4 10-32 kg
E) 3.2 10-27 kg
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