Question: 3. Electron diffraction is a structural tool. What is the energy in eV and velocity in ms1 for electrons to have a wavelength of 1A

$3. Electron diffraction is a structural tool. What is the energy$

3. Electron diffraction is a structural tool. What is the energy in eV and velocity in ms1 for electrons to have a wavelength of 1A ? 4. A high-tech photon source emits 250W of photons at 250nm. a. If the source is mounted on a 5kg "rocket", what is the speed of the rocket in m/s after 1 week, 1 month and 1 year? b. More realistically, what wattage photon source would be needed to take a 2 ton rocket to Mars in 1 year? (assume the Earth-Mars distance is 88 million meters)

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