12. true or false: . 2 objects with different masses are
moving at the same velocity. the object with more mass
will have more momentum.
how many nodes?
how many antinodes?

14, what type of interference is about to occur in this
picture?

  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.