We can study how galaxies evolve because we can study how galaxies evolve because we are really smart astronomers galaxies are transparent to visible light we can watch as they interact in real time the farther away we look, the further back in time we see

Explain the consequences of this addiction to the brain tissue

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f