The quantum harmonic oscillator is very important in analyzing the spectra of diatomic molecules. it can also be extended to the analysis of polyatomic molecules. in this problem, you will look at how the energy levels of the harmonic oscillator relate to the spectrum of carbon monoxide. find the value of k, the effective spring constant. use 16.0 and 12.0 atomic mass units for the masses of oxygen and carbon, respectively. (1amu=1.66×10−27kg.) express your answer in newtons per meter to two significant figures.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

that would be because of both gravity and friction. so     c

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.