<li>A sailor strikes the side of his ship just below the surface of the sea. He hears the echo of the wave reflected from the ocean fllor directly below 3.0 s later. How deep is the ocean at this point?</li>
</ol>
<p>Can anyone help?</p>
<p>Hmmm… I’m not sure if there’s even enough information to solve that!? Haha, then again, it’s been a while since we did waves in my class. Get an AP Physics review book and look over that topic! That’s my best advice in case your textbook is a difficult read (like mine). Good luck!</p>