The figure shows a sound wave as a function of time when the source is stationary with respect to the observer. An Illustration of a transverse wave and four crests and four troughs are labeled 1 s total.
Which shows the perceived sound wave heard by a stationary observer when the source moves toward the observer?

An illustration of a transverse wave and three crests and three troughs are labeled 1 s total.
An Illustration of a transverse wave that is taller than the previous. Three crests and three troughs are labeled 1 s total.
An Illustration of a transverse wave and four crests and four troughs are labeled 1 s total.
An Illustration of a transverse wave and seven crests and seven troughs are labeled 1 s total.

the answer is c.)

explanation:

  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.

get the total number of pieces of fruit and divide it by 4 to get the average. the result is the answer to the problem. 14 total number of fruits and there are 4 members. 14 divided by 4 is equals to 3.5.