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Electromagnetic radiation is emitted by accelerating charges. The rate at which energy is emitted from an accelerating charge that has charge and acceleration is given by where is the speed of light. Part A If a proton with a kinetic energy of 5.5 is traveling in a particle accelerator in a circular orbit with a radius of 0.640 , what fraction of its energy does it radiate per second? Express your answer using two significant figures. Part B Consider an electron orbiting with the same speed and radius. What fraction of its energy does it radiate per second? Express your answer using two significant figures.
The current in a 100 watt lightbulb is 0.790A. The filament inside the bulb is 0.200mm in diameter. What is the current density in the filament
The power output of a car engine running at 2900 rpm is 300 kW. How much work is done per cycle if the engine's thermal efficiency is 10.0%
A ball rolling along at speed v without slipping on a horizontal surface while it comes to a hill that rises at a constant angle above the horizontal.
A photographer uses his camera, whose lens has a 40mm focal length, to focus on an object 5.0m away. How far must the lens move to focus on this second object
A 5.6cm diameter horizontal pipe gradually narrows to 4.6cm . When water flows through this pipe at a certain rate, What is the volume rate of flow
Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. One end of a rope is attached to the bus, while the other is tied around Magnus\'s 48 inch waist. If a force gauge placed half..
The length of a simple pendulum is 0.85 m and the mass of the particle (the "bob") at the end of the cable is 0.29 kg. Using the position of the bob at its lowest point as the reference level, determine the total mechanical energy of the pendulum as..
A battery with a 12-V EMF has a terminal voltage of 11.4 V when it delivers 20A to the starter of a car. How much energy is dissipated per unit time by internal resistor
A bicycle wheel has an initial angular velocity of 16 radians/second and acceleraties to a final angular velocity of 42 radians/second, Determine the time required for this motion to occur
A bird sitting in a tree is travelling at 40 km/s relative to the faraway Sun. When the bird drops to the ground below, does it still go 40 km/s, or does this speed become zero.
Equipment to be used in airplanes or spacecraft is often subjectedto a shake test to be sure it can withstand the vibrations that maybe encountered during flight. Find the radio's maximum speed
Consider a particle of spin 1/2 in a magnetic field B= (0, 0,B0). If the initial spin state of the electron is X+ = (1,0), then the Larmor precession:
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