The size of a wave depends on how strong the wind is, how long it blows, and how large the body of water is. In a small bay(海湾) big waves will never build up. But at sea the wind can build up huge and powerful waves.
A rule says that the height of a wave (in meters) will usually be no more than one-tenth of the wind’s speed (in kilometers). In other words, when the wind is blowing 120 kilometers per hour, most waves will be about twelve meters. Of course, some waves may combine to form huge waves that are much higher. In 1933 the United States Navy( 海军) reported the largest measured wave in history. I t rose in the Pacific Ocean to a height of thirty-four meters.
举一反三
- More people are killed by huge sea waves than by buildings failing.
- More people are killed by huge sea waves than by buildings falling.
- Which type of earthquake wave is a compressional wave? A: P-waves B: surface waves C: long waves D: S-waves
- waves include primary wave (P-wave) and secondary wave (S-wave) .
- Seismic waves include P wave, S wave, Rayleigh wave and Love wave, of which the fastest is P wave.
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The waves of the sea were very rough that day. The[u] [/u]waves were very rough. 未知类型:{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} A: sea's B: seas'
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There is a great deal of interest in _____ wind and waves as new sources of power. A: tacking B: controlling C: coordinating D: harnessing
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18. There is a great deal of interest in _____ wind and waves as new sources of power. A: tacking B: controlling C: coordinating D: harnessing
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electromagnetic waves
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What is the purpose of analyzing the speed of sound through the Pacific-Ocean() A: To determine whether the Earth’s temperature is going up. B: To study the behavior of some sea animals. C: To measure the depths of the ocean. D: To measure the movement of waves on the ocean.