A series RLC circuit has an impedance of 120? and a resistance of 64?. What average power is delivered to this circuit when Vrms = 90 volts?
a. 36 W
b. 100 W
c. 192 W
d. 360 W
e. 12 W
a
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How many joules of energy are required to accelerate one kilogram of mass from rest to a velocity of 0.886c?
A) 1.8 × 1017 J B) 9.0 × 1016 J C) 3.0 × 103 J D) 8.1 × 1021 E) 3.4 × 10-7
If telescope A is 160 cm in diameter, and telescope B is 32 cm in diameter, how much more light does telescope A gather than telescope B?
a. 5 times b. 10 times c. 20 times d. 25 times e. 100 times
The horizontal surface on which the objects slide is frictionless. If F = 6.0 N and M = 1.0 kg, what is the magnitude of the force exerted on the large block by the small block?
A. 7.7 N B. 9.8 N C. 9.1 N D. 8.4 N E. 6.5 N
In twice the time, an object will attain a speed that is
A) four times as fast. B) 16 times as fast. C) 12 times as fast. D) twice as fast. E) eight times as fast.