What is the average density of the hydrogen ion (an isolated proton) given that its radius is 1.2 X 10-15 m and that its mass is 1.673 X 10-27 kg

The rules of engagement (roe) working group is often used to (select all that apply.)

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

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.