Trees obtain carbon from
a.
decaying organisms
b.
sunlight
c.
the atmosphere
d.
none of the above

List one type of erosion and describe how it happens?

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

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.