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?
D
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How much energy is released when 0.60 ?g of 3H have decayed to 3He?
The mass of 3He is 3.0160293 u, the mass of 3H is 3.0160492 u, 1 u = 931.5 MeV/c2, 1 eV = 1.60 × 10-19 J, and NA = 6.022 × 1023 molecules/mol.
Which of the following is not a heat engine?
A) steam locomotive B) hydro-electric generating plant C) nuclear electric power plant D) coal-fired electric generating plant E) automobile engine
In modern astronomy, an interferometer
a. is the highest resolution optical telescope ever built. b. is located in Arecibo, Puerto Rico. c. is a set of optical telescopes linked together to provide very high resolution. d. is a set of radio telescopes linked together to provide very high resolution. e. is either a set of optical telescopes linked together to provide very high resolution or is a set of radio telescopes linked together to provide very high resolution.
A simple pendulum, 2.0 m in length, is released from rest when the support string is at an angle of 25° from the vertical. What is the speed of the suspended mass at the bottom of the swing?