A wave created by a certain source travels from medium 1 into another medium 2. It is noticed that its velocity is faster in med
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Let's call L the distance between the tugboat and the reflecting object. The sound wave travels from the tugboat to the reflecting object, and then back again to the tugboat, in a total time of t=3.20 s. This means that the distance covered during this time is S=2L.
The sound wave moves by uniform motion, with velocity v=342 m/s, so we can use the basic relationship between space and time for a uniform motion:
And so the distance L between the tugboat and the reflecting object is
The sound wave moves by uniform motion, with velocity v=342 m/s, so we can use the basic relationship between space and time for a uniform motion:
And so the distance L between the tugboat and the reflecting object is