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A moving particle encounters an external electric field that decreases its kinetic energy from 8560 eV to 7750 eV as the particle moves from position A to position B. The electric potential at A is -53.0 V, and the electric potential at B is +27.7 V. Determine the charge of the particle. Include the algebraic sign (+ or ?) with your answer.
Stars, to a good approximation, are spherical, and emit electromagnetic radiation from a surface of emissivity e = 1. What is the diameter (in millions of km) of this star
An RLC circuit consists of a 218 resistor, a 45 ?F capacitor, and a 298 mH inductor, What is the phase angle between the current and the applied voltage
An audio amplifier delivers to the speaker alternating voltage at audio frequencies. what is the time-averaged power transferred to it
31.3 million excess electrons are inside a closed surface. what is the net electric flux through the surface
A suitcase is pulled by a tether that makes a 60 degree angle with the horizontal. what is the magnitude of the pull
Two sound speakers separated by a distance of 3-meters, are driven in phase by same audio amplifier. A listener sits directly in front of one speaker at a distance of 4 meters from it so that listener and speakers form a right triangle.
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.10 cm thick. The bullet strikes board with a speed of 455m/s and emerges with a speed of 279m/s. (To simplify, suppose that the bullet accelerates only while the fr..
A certain superconducting magnet in the form of a solenoid of length 1.10 m can generate a magnetic field of 11.0 T in its core when its coils carry a current of 85 A. Find the number of turns in the solenoid
In a football game, a receiver is standing still, having just caught a pass. Before he can move, a tackler, find the mass of the receiver
She comes to rest 3.00 m under the surface of the water. Identify the magnitude of the average force that the water exerts on the diver. This force is nonconservative.
A small 12.3 g plastic ball is tied to a very light 28.6 cm string that is attached to the vertical wall of a room, Find the magnitude and direction of the electric field in the room
A normal electric power cord consists of two parallel conductors about 4 mm apart. Estimate the magnetic field strength (in N/C) about 30 cm from a linear 25 m power cord connected to a 100 W lamp
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