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A light bulb has a resistance of 230 ?. It is connected to a standard wall socket (120 V rms, 60.0 Hz).
(a) Determine the current in the bulb.
___________ A
(b) Determine the current in the bulb after a 13.0-µF capacitor is added in series in the circuit.
______________ A
(c) It is possible to return the current in the bulb to the value calculated in part (a) by adding an inductor in series with the bulb and the capacitor. What is the value of the inductance of this inductor?
______________ H
A spherical, conducting shell (inner radius = a and outer radius = b) has a charge +Q placed on it. What is the electric field everywhere
It walks 2.1 m along the boat toward shore and then stops. Assuming no friction between the boat and the water, find out how far the dog is then from the shore.
A proton is accelerated from rest through 500. V. It enters a magnetic field of 0.300 T oriented perpendicular to its direction of motion. determine the frequency with which it moves around this path
What is the Professors initial velocity. He is pushed a distance 3.00 m along the incline by a group of students who together exert a constant horizontal force of 595 N. The professor's speed at the bottom of ramp is 1.70 m/s.
The amplitude of the electric field of an electromagnetic wave is 197 V/m.
What is the terminal speed for a 76.0 skier going down a 41.0 snow-covered slope on wooden skis = 0.070? Suppose that the skier is 1.80 m tall and 0.500 m wide. Replace mg with net forces parallel to the incline.
Light of a wavelength 450 nm is incident on a sodium emitter in a photoelectric effect apparatus. What is the cutoff frequency for the emitter
Sam pushes a 10.0-kg sack of bread flour on a frictionless horizontal surface with a constant horizontal force of 4.0 N starting from rest. What is the speed of the sack after Sam has pushed it a distance of 20 cm
A volleyball play jumps into the air by first lowering his body by. .4 m and then accelerating by straightening his legs rapidly. what is the force exerted by his feet on the floor
Heat and physical activity. In a bench press, a weight lifter lifts 132kg 41cm. In so doing, the athlete expends 1.2kJ. What's the heat flow involved in this process
what rate must air be moving through the open window in order to keep the system in equilibrium.
An archer shoots an arrow horizontally at a target 12 m away. The arrow is aimed directly at the center of the target, but it hits 56 cm lower. What was the initial speed of the arrow.
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