There are two types of circuits: series and parallel. in a series circuit, the objects, wires and battery or power source are in a single loop and there is only one path for the electrons to take back to the battery. in a parallel circuit the objects are arranged so that there are several paths back to the battery. this diagram illustrates

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