If you cut a piece of aluminum into two equal pieces and cut those pieces into two equal pieces and repeat this 10 times, the tiny piece of aluminum is about 1000 times smaller than the original piece. how many cuts would it take to get down to 1 atom of aluminum if the size of an atom was one billion times smaller than a 1-cm piece of aluminum?

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.