What two things happen to solar radiation that reaches 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

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

What is the momentum of a 2 kg object moving at 15 meters per second