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An electron and a proton are detected in...

An electron and a proton are detected in a cosmic ray experiment, the first with kinetic energy 10 keV, and the second with 100 keV. Which is faster, the electron or the proton ? Obtain the ratio of their speeds, (electron mass = `9.11xx10^-31 kg`, proton mass = `1.67xxl0^-27kg`, `1 eV = 1.60 xx 10^-19 J`)

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