After eating a healthy breakfast, a student starts a five-mile hike. Explain how this scenario illustrates kinetic and potential energy. Explain how one form of energy is transformed into the other form of energy. Be sure your explanation includes a definition of each form of energy.

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

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical

Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.