The upstream of a river can be determined by

a the direction of the mouths of the v shapes on contour lines

b which way is south from the map's compass

c examining the highest elevation on the map

d the direction of the points of the v shapes on contour lines

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

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?

In which of the following is positive work done by a person on a suitcase