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A resistor with R=300 ? and an inductor are connected in series across an ac source that has voltage amplitude 500 V. The rate at which electrical energy is dissipated in the resistor is 216 W.
(a) What is the impedance Z of the circuit?
(b) What is the amplitude of the voltage across the inductor?
(c) What is the power factor?
A transformer is used by a European traveler while she is visiting the United States. find the rate at which heat is generated in the transformer itself
The filament of a light bulb has a temperature of 3.20E+3 °C and radiates 40 watts of power. The emissivity of the filament is 0.360. Find the surface area of the filament
A man strikes a long aluminum rod at one end. Another man, at the other end with his ear close to the rod, How long is the rod
A wire carries a current of 0.616 A. This wire makes an angle of 56.7° with respect to a magnetic field of magnitude 4.63E-5 T. The wire experiences a magnetic force of magnitude 7.17E-5 N. What is the length of the wire?
A hoop of radius 0.5 m and mass 0.8 kg is rolling without slipping at a speed of 20 m/s toward an incline of slope 30o. How far along the incline will the hoop roll
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A 2.52g bullet moving at 290 m/s enters and stops in an initially stationary 2.50 k/g wooden block on a horizontal frictionless surface. How much work was done in stopping the bullet
Two blocks of masses m1 = 1.90 kg and m2 = 5.18 kg are each released from rest at a height of h = 5.15 m on a frictionless track, find the maximum height to which m1 rises after the collision
A 0.60-T magnetic field is directed perpendicular to the plane of a circular loop of radius 0.40 m. What is the magnitude of the magnetic flux through the loop
A projectile is fired at an angle of 55 degrees above the horizontal with an inital speed of 35.0 m/s. What is the magnitude of the horizontal component of the bullet's
puck 1 of mass m1 = 0.30 kg is sent sliding across a frictionless lab bench, to undergo a one-dimensional elastic collision with stationary puck 2. What is the mass of puck 2
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