Which of the following is a sign of anorexia nervosa? a using performance-enhancing supplement b sudden, massive weight loss c checking their appearance in the mirror frequently

Asimply means that over time there was some sort of change.

The air that we breath is made mostly of which gaseous molecule

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?