What is geothermal energy ?

Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.