A30-kva 8000/230-v distribution transformer has an impedance referred to the primary of 20 + j100 ω. the components of the excitation branch referred to the primary side are rc =100 kω and xm =20 kω (a) if the primary voltage is 7967 v and the load impedance is zl= 2.0 + j0.7 ω. what is the secondary voltage of the transformer? what is the voltage regulation of the transformer? (b) if the load is disconnected and a capacitor of –j3.0 ω is connected in its place, what is

Wavelength divides in half and speed stays the same.

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero.