What layer of the atmosphere returns radio and tv broadcasts back to earth?

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

What is the mass of the same rock on the earth

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending