A force of 10 N causes a spring to extend by 20 mm. Find: a) the spring constant of the spring in N/m

what is the question because that is not a question.

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

  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.