If there are two parallel lines of charge q that have the same sign and are close together, what are the potential and electric field at the midpoint between the two lines?

Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?