Explain the principle of conservation of energy based potential energy and kinetic energy and how they exchange with each other. can yall just answer the question pls LOL

The answer to this is decibel

  concave means having an outline or surface that curves inward like the interior of a circle or sphere. so the mirror curves inward.

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 the answer is d. macula  hope my answer has you : )