A prospector finds 39.39 grams of pure gold (atomic mass 196.9655 u). How many atoms of gold are there? a 7.76 x 103
b 1.2 x 1023
c 0.199
d 6.02 x 1023

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.