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a 200 ohms resistor and a .4 H inductor are connected in series with a voltage source having amplitude of 30 v and oscillating with an angular frequency of 250 rad/sec.
A) What is the empedance of the circuit?
B) what is the current amplitude?
C) What is the voltage amplitude across the resistor and the voltage amplitude across the inductor?
D) what is the phase angle of the source voltage with respect to the current?
What fraction of the power radiated by the sun is intercepted by the planet Mercury? The radius of Mercury is 2.44 x 106 m, and its distance from the sun at the moment is 5.75 x 1010 m. presume that sun radiates uniformly in all directions.
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A -3.07 ?C charge is placed at the center of a conducting spherical shell, and a total charge of +6.70 ?C is placed on the shell itself. Calculate the total charge on the outer surface of the conductor.
What is the angular momentum of a 3.2 kg uniform cylindrical grinding wheel of radius 12cm while rotating at 1400 rpm.
A water pipe is inclined 32.0° below the horizontal. The radius of the pipe at the upper end is 3.00 cm. If the gauge pressure at a point at the upper end is 0.117 atm, what is the gauge pressure at a point 2.65 m downstream, where the pipe has narro..
A magnetic computer disk 8 cm in diameter is initially at rest. A small dot is painted on the edge of the disk. A small dot is painted on the edge of the disk. The disk accelerates at 600 rad/s^2 for 1/2 s , then coasts at a steady angular velocit..
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Two point charges Q1 = +5.25 nC and Q2 = ?2.15 nC are separated by 40.0 cm, What is the electric potential at a point midway between the charges
A 237 g mass is connected to a light spring of force constant 3 N/m that is free to oscillate on a horizontal, frictionless track. What is the maximum acceleration of the mass
A proton is accelerated from rest through a potential difference of 450MV. Find the proton's rest energy
A skier of mass m glides down a hill of slope ? at constant speed. If she travels a distance d down the hill, what is the work done by friction
Certain sharks can detect an electric field as weak as 1.1 mu V/m . To grasp how weak this field is, how far apart would the plates have to be
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