They differ because they are transverse wave. That is their direction of travel is perpendicular to its vibrations.
W, because as time is moving up at a consistent rate the speed is as well, creating the straight line.
Answer:
Technically everything has somewhat of a magnetic field. I guess
<span>One timing problem
in using fiscal policy to counter a recession is called the “legislative lag”
it occurs between the time the time the need for fiscal action is recognized
and between the time that it is taken in action.</span>
