Answer:
The answer is a for Plato users.
Explanation:
Since the angle of the refracted ray moves away from the normal, it must be traveling in a faster medium.
Answer:
the answer is d I'm pretty sure
Answer:
As the sound approaches the observer, the pitch increases; as it passes the observer, the pitch decreases.
Explanation:
The crests come closer when it approaching, and go farther when the source passes the observer.
3.25 x 10^2 (ten to the second power)
