When objects are charged by , they do not need to touch each other. A.
friction
B.
induction
C.
conduction
D.
all of these

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance