Frequency depends on relative velocity of source and listener. Where V is the velocity of sound. The Iistener velocity is positive if moving towards the source, and the source velocity is positive if moving away from the listener. How does a TV or computer display work.
Electrons form a cloud of charge around the nucleus.
A neutral atom has as many electrons as protons. The x-ray that expose the film result in chemica changes in the silver componds on the film that result in them turning black during develpement. The absorbing spots in your body appear as shadow graphs on the film. Radiation Radiation damage is due to the stopping x-rays. In the region of this shower there are many ions, broken molecules, and reactive molecules called free radicals.