Question

Zadanie dla dobrych i pomocnych kolegów znających angielski. Musze napisać ,,wypracowanie;;w którym trzeba opisać jakiś kataklizm np traba powietrzna wybuch wulkanu lub tsunami. Nie musi byc żadnych imion prosze o pomoc gdyz angielski mi w ogóle nie idzie. Z góry dziękuje. Ale proszę o szybką odpowiedź gdyz mam to na jutro!!!!!

Answer 1

Hey, To wypracowanie na podstawie artykulu z amerykanskiego Newsweeka. Mam nadzieje ze tyle wystarczy.

 

The phenomenon we call a tsunami is a series of waves of extremely long wavelength and period generated in a body of water by an impulsive disturbance that displaces the water. Tsunamis are primarily associated with earthquakes in oceanic and coastal regions. When an earthquake occurs, the energy travels outward in all directions from the source. Detecting tsunamis is a very difficult thing to do. When a wave begins in the deep ocean waters, it may only have a height of about twelve to twenty-three inches and look like nothing more than the gentle rise and fall of the sea surface. in deep water can have a wavelength greater than 300 miles (500 kilometers) and a period of about an hour. This is very different from the normal California tube, which generally has a wavelength of about 300 feet (100 meters) and a period of about ten seconds. (The period of a wave is the time between two successive waves.)

Tsunamis are shallow-water waves, which means that the ratio between water depth and wavelength is very small. These shallow-water waves move at a speed equal to the square root of the product of the acceleration of gravity (9.8m/s/s) and the water depth. The deeper the water, the faster and shorter the wave is. For example, when the ocean is 20,000 feet deep, a tsunami travels at 550 miles per hour. At this speed, the wave can compete with a jet airplane, travelling across the ocean in less than a day.

Another important factor in considering tsunamis is the rate at which they lose energy. Because a wave loses energy at a rate inversely related to its wavelength, tsunamis can travel at high speeds for a long period of time and lose very little energy in the process.