According to the law of conservation of momentum A. total angular momentum is unchanged, it means an orbiting object must orbit at the same speed when it's far from the object it orbits around
B. when an object rotates or orbits, it will eventually stop because of friction
C. total angular momentum is unchanged, it means an orbiting object must orbit faster when it's far from the object it orbits around
D. total angular momentum is unchanged, it means an orbiting object must orbit faster when it's near the object it orbits around

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. 

The answer is periosteum

At maximum height, kinetic energy is converted in potential energy  formula: at max height, ke = ½ * 0.27kg * (16m/s) ² = 34.56 j  so the remaining pe = (41.70 – 34.56)= 7.14 j = 0.27 kg * 9.8m/s² * h  = (9.8/7.14 * 0.27)so max height h = 5.08 or 5 m 

Answerfalls,rises