An infinitely long nonconducting cylinder of radius r = 2.00 cm carries a uniform volume charge density of 18.0 micro-coulomb/cubic meter. calculate the electric field at distance r = 1.00 cm from the axis of the cylinder

The answer would be true!

Frequency is the number of complete oscillations of a wave per second.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.