If the 180-lb ski-jumper attains a speed of 80 ft /sec as he approaches the takeoff position, calculate the magnitude N of the normal force exerted by the snow on his skis just before he reaches A.

Explanation:

Formula to calculate the magnitude of N is as follows.

        N =

Putting the given values into the above formula and calculate the magnitude as follows.

          N =

             =

             = 12694.8

and,        

              = 394.6 lb

Hence, we can conclude that the magnitude N of the normal force exerted by the snow on his skis just before he reaches A is 394.6 lb.

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

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