For helium, let’s label the emission wavelengths, λ(nf, ni) where nf and ni are, respectively, the principal quantum numbers of the final and the initial states. calculate the following emission wavelengths: v λ(3,4), λ(4,6), λ(4,7), λ(4,8) and λ(4,9)

Check the following equation for dimensional homogeneity: ⅆ mv=∫t1t2(f⁢cosθ)ⅆt where m is mass, v is velocity, f is force, θ is an angle, and t is time. check that each term in the equation has the following dimensions: [malbec] where you are to choose the coefficients a, b, c.