If a drop is to be deflected a distance d = 0.310 mm by the time it reaches the end of the deflection plate, what magnitude of charge q must be given to the drop? assume that the density of the ink drop is 1000 kg/m3 , and ignore the effects of gravity.

nah.   i'm just sleepy.

graph question answered .. you think better when you are relaxed and happy

  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.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.