A(n) particle is a particle that contains two protons, two neutrons, and has a 2 charge.
a. beta
b. alpha
c. positron
d. gamma

  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.

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this