It's useful because it gets you ahead in class. If you read ahead you are more likely to understand what your professor is teaching. It also helps if you unexpectedly get a large amount of homework. If you have read ahead it allows you to have more time doing labs or essays.
Answer:
Most likely foreshadowing
Explanation:
Foreshadowing is a literary device used to give an indication or hint of what is to come later in the story. Foreshadowing is useful for creating suspense, a feeling of unease, a sense of curiosity, or a mark that things may not be as they seem.
~ Sending you good vibes and good luck! ~ - Mochi
Answer :- 6 m/s
V =λ /T
Since T = 1 /f we can also say that:
v = λ . f
So, using that last formula:
v= 2 m . 3 Hz
= 6 m/s
D. is the correct answer
hopefully im right