PLEASE HELP ill also answer questions that you have posted if you answer this correctly (30pts)

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

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

Am i correct on these two physics questions?