Marine science questions 11. A sound has an average depth of 19.9 meters and a l
ID: 158295 • Letter: M
Question
Marine science questions
11. A sound has an average depth of 19.9 meters and a length of 156 kilometers (that is, 156,000 meters). What is the natural period of oscillation of the Sound? Would you expect the development of significant tides? Why or why not?
15. Waves arriving at a beach from a storm 1200 kilometers away progressively decrease in wave period, from 12 to 6 seconds. How long does it take the 12-second waves to reach us? How long does it take the 6-second waves to reach us? Assume deep-water wave conditions for the entire travel distance.
16. Waves 2.8 meters high (H=2.8 m) are approaching the coast from offshore. At what water depth (h) will they break? How fast will they be traveling (what will be their celerity) just before the break. Assume that they are in shallow water before breaking.
19. The length of a Lake is approximately 311 km, that is 311,000 meters, and has an average depth of 86 m. What is the natural period of oscillation of the lake, and would one expect the development of significant tides? Why or why not?
Explanation / Answer
The time period of oscillations are 2*3.14(sqaure root of 2*156000/19.9
=312000/19.9
= final answer js 786 . Yes it will form tides because of higher time period
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