Which of the following changes would decrease the force between two charged particles by a factor of 9? A.
Increasing the amount of charge on each particle by a factor of 9
close

B.
Decreasing the distance between the particles by a factor of 3
done

C.
Increasing the distance between the particles by a factor of 3

D.
Decreasing the amount of charge on one of the particles by a factor of 3

  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.

i think it would be 5