The diagram below is meant to show refraction of a sound wave as it passes from one medium into another. The lines represent each compression in the
sound wave. Which of the following does not occur as the wave passes from
the blue into the white medium?
///
A. The wave speed changes.
B. The frequency changes.
c. The wavelength changes.
D. The direction of wave motion changes.

The speed was not exceeded so it was slow

Hahahah jsu’s hsjshshsh. shjshshshsh.

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j