To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. what kinetic energy, k, must the electrons have in order to resolve a protein molecule that is 3.80 nm in diameter? take the mass of an electron to be 9.11×10^−31 kg
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How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.