The two ends of a 2.00-? resistor are connected to a 8.20-V battery. What is the current through the resistor?
a. 16.4 A
b. 0.244 A
c. 4.10 A
d. 10.2 A
e. 6.20 A
c
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The power factor of an RLC series circuit _______ at resonance.
A. is one B. has a value that depends upon the ratio of inductive reactance to impedance C. has a value that depends upon the ratio of capacitive reactance to impedance D. is zero
A solid disk is rolling without slipping along a horizontal surface with a speed of 4.50 m/s when it starts up a ramp that makes an angle of 25.0° with the horizontal. What is the speed of the disk after it has rolled 3.00 m up the ramp?
A) 4.01 m/s B) 1.92 m/s C) 2.06 m/s D) 6.79 m/s E) 8.02 m/s
You stand near the Earth's equator. A positively charged particle that starts moving parallel to the surface of the Earth in a straight line directed east is initially deflected upwards. If you know there are no electric fields in the vicinity, a possible reason why the particle does not initially acquire a downward component of velocity is because near the equator the magnetic field lines of the
Earth are directed a. upward. b. downward. c. from south to north. d. from north to south. e. from east to west.
The lowest tone to resonate in a closed pipe of length L is 200 Hz. Which of the following frequencies will not resonate in that pipe?
A) 200 Hz B) 400 Hz C) 600 Hz D) 1000 Hz E) 1400 Hz