If an alpha particle has 20 fm as its distance of closest approach when incident on a gold foil, what will be its kinetic energy?
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- (a)aCalculate the velocity (in m/s) of an electron that has a wavelength of 8.76 µm. (b) Through what voltage (in V) must the electron be accelerated to have this velocity? (Assume the electron starts at rest.)If an alpha particle has 50 fm as its distance of closest approach when incident on a gold foil, what will be its kinetic energy?