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OpenStudy (anonymous):
Calculate the change in energy of an atom that emits a photon of wavelength 2.21 meters. (Planck’s constant is 6.626 x 10-34 joule seconds, the speed of light is 2.998 x 108 m/s)
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OpenStudy (jfraser):
you need the two equations for electromagnetic radiation \[c = \lambda * \nu\]and\[E = h*\nu\] use the first equation to find the frequency \(\nu\) of the wave, and use the second equation to find the energy (E) of the wave
OpenStudy (anonymous):
help me feather
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