A total impedance of an RC circuit with a capacitance of 40.0 ?F is 800 ?. If the frequency of the applied ac voltage is 18.0 Hz, what is the resistance of the circuit?
A) 569 ?
B) 669 ?
C) 769 ?
D) 869 ?
E) 800 ?
C
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The half-life of a muon is 2.20 ?s as measured in a stationary reference frame. What is the half life of the muon (in ?s) when it is moving with a speed of v = 0.800c?
A. 8.13 B. 2.75 C. 3.67 D. 15.8 E. 1.32
Linear momentum is conserved in all collisions
a. True b. False Indicate whether the statement is true or false
You are making a circular turn in your car on a horizontal road when you hit a big patch of ice, causing the force of friction between the tires and the road to become zero. While the car is on the ice, it
A) moves along a straight-line path away from the center of the circle. B) moves along a straight-line path toward the center of the circle. C) moves along a straight-line path in its original direction. D) continues to follow a circular path, but with a radius larger than the original radius. E) moves along a path that is neither straight nor circular.
The atmosphere is divided into several layers. The troposphere is the
A) lowest and thickest layer, where Earth's weather occurs. B) lowest and thinnest layer, where Earth's weather occurs. C) atmosphere's third and thickest layer. D) lowest and least dense layer in the atmosphere, where Earth's weather occurs.