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(c) calculate the franck–condon elements originating from the n = 0 nation of a diatomic molecule to the mthvibrational level of one of its excited electronic states. Many airways are planning to renew flying, however they first want to lessen the risks of covid-19. Set na to 0 in r. ask question requested 8 years, 1 month ago. lively 6 months ago. considered 97k instances 21. 12. after merging a dataframe with every other im left with random na's for the occasional row. i might like to set these na's to 0 so i can carry out calculations with them. im seeking to do that with:. All this reasoning had sense provided t1 zero. in any other case we'd get z(zero, 1,zero,0, ), if ti = 0, t2 0, or z(zero,zero,1,0, ), if t = t2 = zero, to 0, ete. in other phrases, we achieve . If zero is the end result of (a2-a3), don’t show zero show not anything (indicated by means of double fees “”). if that’s no longer real, display the result of a2-a3. if you don’t want the cells clean but ...