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Question The plates of a parallel-plate capacitor have areas of 10 cm2 each and are separated by 2 cm. The capacitor is filled with a dielectric material with ε= 4ε0, and the voltage across it is given by
V (t) = 30 cos 2π×106t (V).
Find the displacement current.
A 9.0 cm diameter wire coil is at first oriented so that its plane is perpendicular to a magnetic field of 0.67 T pointing up. During the course of 0.30 s, the field is changed to one of 0.25 T pointing down. What is the average induced emf in coil.
The weights of the worker and crate are 912 and 1590 N, respectively. What is the tension in the cable above the worker
A 1200 kg car pulls a 480 kg trailer. The car exerts a horizontal force of 3540 N against the ground in order to accelerate. What force does the car exert on the trailer
A small coil has a cross section of 3.5 cm2 and consists of 12 turns of wire. If the loop carries a current of 140 mA, what is the torque required to hold the loop
What is the mass of the child and basket if a scale reading of 102 N is observed? What is the tension T in the cord attaching the child to the scale?
A hollow cylinder (hoop) is rolling on a horizontal surface at a speed v=3.3 m/s when it reaches a 15 degree incline. estimate how far up the incline will it go
A circular loop of wire of radius 0.50 meter is in a uniform magnetic field of 0.30 T. Obtain the magnetic torque when the plane of the loop is parallel to the magnetic field
bernie b is walking directly toward the center of a vertical mirror m. how close to the mirror will he be when sarah s
The piston in the cylinder head of a locomotive has a stroke (twice the amplitude) of 0.66 m. If the piston moves with simple harmonic motion with an angular frequency of 180 rev/min, what is its maximum speed?
A 0.037 kg aluminum bullet traveling at 478 m/s strikes an armor plate and comes to a stop. If all its energy is converted to heat that is absorbed by the bullet, what is the bullet's temperature change in degrees Celsius? (This is a multi-step pr..
A piece of curved glass has a radius of curvature of 10.0 m and is utilized to form Newton's rings, as in Figure 27.16. Not counting the dark spot at the center of the pattern, there are one hundred dark fringes, the last one being at the outer edge..
The charge is uniformly distributed within volume of each sphere.How much kinetic energy does the block gain.
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