we define the ATM. pressure as the weight of cylinder of air above the earth with surface area for its base equal 1 m2 referring to this definition how could we illustrate the pressure at
1- a room with roof .
2- a room without roof .
3- vacuum room.
we know that electric current result of motion of electrons through aconductor
and resistance result of electron's collisions with matter's nuclei resulting in heating material
my question is what is the effect of positive electric field of nuclei at the motion of negative electrons ...
yes sir thats exactly what i meant but i want to know with more diagramatic illustration the effect of molecule's shape on this behaviour i thought that such basic phenomena had a lot of discussion in previous threads
We know that the earth revolves around the sun in an oval orbit the sun occupies one of its centers
On this basis, the distance from the sun is not constant and the land closest to the sun in Maicon on Jan. 3 and and be further from the sun on July 4, the difference between the two points...