Answer in order to be available all the time, a communications satellite must orbit in a circle above the equator and must remain above the same point on the earth's surface. how long does it take for a communications satellite to make one complete orbit around the earth? re = 6.38 × 106 m, me = 5.97 × 1024 kg, and g = 6.674 × 10−11 nm2/kg2.

Go to the bathroom and vape

No because scientist are still changing there mines today so they are not correct to this day

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.