The tallest man made structure at present is thewarszawa radio massin warsaw poland. this radio mast rises 646m above ground nearly 200m higher than the sears tower in chicago. suppose a worker at the top accidently knocks a hammer off the tower if the force acting on the hammer is 3.6n and its acceleration is 9.8m/s calculate the mass of the hammer. most show work

How are calculation for velocity and speed different

Which atomic model was proposed as a result of j. j. thomson’s work?

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