In fair weather, there is an electric field at the surface of the earth, pointing down into the ground. what is the electric charge on the ground in this situation?

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

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 is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly