2 years ago

HURRY

Physics

2 answers:

Lynna [10]2 years ago

8 0

Answer:

the answer is b or "The sound wave will not be generated, so there will be no echoes received."

Explanation:

Mrac [35]2 years ago

6 0

Answer:

It’s b

Explanation:

Everyone else is wrong and I tried this and got it right

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