The deflection becomes noticeably smaller after rubbing your finger on one of the two U-tapes. This is due to the movement of charge between the tape and the finger . Further the term in Coulomb's Law that explains why this force is smaller is

answer: the answer is a

the answer would be c. motion and direction

i hope this : )

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

their crystal patterns have been disrupted by stress