An iron ball is dropped from a flat platform (note: the initial velocity is zero). What is the velocity of the ball in m/s 1,6 s after it is dropped? Use g = 10 m/s2. Do not include the units in your answer.

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

What is the role of lenses in microscopy?

Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.