What do they mean by "name of acid"?

Which describe reflection? check all that apply. light bounces off a boundary.

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

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