In which medium does sound travel the fastest? a. salt water b. fresh water c. air *** d. cast iron a wave has a wavelength of 10 mm and a frequency of 5 hertz. what is its speed? a. 50 mm/s b. 50 hertz/s c. 2 mm/s 0.50 mm/s how does reflection differ from refraction and diffraction? a. reflection is the only process in which the wave does not continue moving forward. b. reflection is the only process that involves a change in the wave. c. reflection affects all types of mechanical waves, but refraction and diffraction do not. d. reflection is the only process that changes the direction.

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. 

Ibelieve you go to settings