Describe the properties of a longitudinal wave

A longitudinal wave is a wave whose direction of oscillation is the same as the direction of propagation. An example of longitudinal waves are sound waves, which consist of alternating regions of compressed/rarefacted air that oscillate in the same direction the wave is travelling to.

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

The big glowy thing is called the sun it is a star in our galaxy and is over 1 million degrees