What velocity and kinetic energy in ev must an electron, Physics

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What velocity and kinetic energy in ev must an electron

Solve the following questions:

Question 1: What velocity and kinetic energy (in eV) must an electron have in order to have a wavelength equivalent to an x-ray with a wavelength of 2 x10^-10?

Question 2: What kinetic energy and velocity are required for a proton?

Please show all work and equations. Defend your answer.

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Physics: What velocity and kinetic energy in ev must an electron

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Physics: What velocity and kinetic energy in ev must an electron

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