How does the material through which a wave travels affect the wave? Give evidence and reasoning for your claim. Hint: Think about the questions that we just answered about the speed of sound in air. Example Sentence Frames
Claim: A material like can change the of a wave.
Evidence: I know this because (use data with specfic numbers).
Reasoning: This means that materials like are able to directly affect the of waves.

P

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

Answerthe distance between the two ends of the galaxy is 150,000 light years;

The force is push or pull