What conditions in the nucleus are likely to result in an atom that is unstable?
A. When the attraction of the electrostatic force is greater than the
repulsion of the strong force
B. When the repulsion of the electrostatic force is greater than the
attraction of the strong force
C. When the attraction of the electrostatic force is greater than the
attraction of the strong force
D. When the repulsion of the electrostatic force is weaker than the
repulsion of the strong force

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.