1.

Electromagnetic radiation is emitted by accelerating charges. The rate at which the e nergy is emitted from an accelerating charge that has charge q and acceleration a is given by dE/dt = q^(2)a^(2)//6piepsilon_(0)c^(3) , where c is the speed of light. A proton and an electron of kinetic energy 6 Me V is traveling in a particle accelerator in a circular orbit of radius0.75 m. What fraction of its energy does a proton emit per second?

Answer»

`1.1 xx10^(-11) s^(-1)`
`2.1 xx10^(-11) s^(-1)`
`3 xx10^(-11) s^(-1)`
`1.4 xx10^(-11) s^(-1)`

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