Assume a hydrogen atom is a sphere with diameter 0.100 nm and a hydrogen molecule consists of two such spheres in
contact. (a) What fraction of the space in a tank of hydrogen
gas at 0°C and 1.00 atm is occupied by the hydrogen mole-
cules themselves? (b) What fraction of the space within one
hydrogen atom is occupied by its nucleus, of radius 1.20 fm?

The answer is a 0.64 volts

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Cpowerlifting my boi

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.