It leaves the track horizontally, striking the ground as shown. What is the speed of the block when it leaves the track? Projectile Motion: Whenever a football player boots a football, we will notice that the football follows a particular curved path, so unlike a one-dimensional motion, ...
The categories help people know how much damage(危害) a hurricane may cause because the greater the wind speed, the more dangerous the storm. For example, a Category 5 hurricane has winds over 155 miles per hour, which are strong enough to break the buildings along the seaside completely....
根据“Wind turbines and windfarms can generate electricity without burning fossil fuels or producing pollution.”可知,风可以产生电能。故选D。(4)题详解: 细节理解题。根据“Wind is caused by differences of pressure in the earth’s atmosphere.”和“When lots of these molecules move, usually in one...
What is the average wind speed of a tropical storm? What are the wind speed averages on Macquarie Island? What is the fastest tornado in record? What is the highest Fujita scale rating for a tornado? What is the average size of a tornado? What was the Fujita scale rating for the Da...
Not all winds are useful to people. Strongwinds can do a lot of damage. They can hurtpeople, trees, and buildings. A tornado is apowerful storm. Its winds can reach the speedof fast trains. Tornado winds can tear trees outof the ground and d...
China already possesses the world's largest high-speed railway network, and it will only expand more ambitiously, according to the country's new Five-Year Plan. But it's not just the railroads that are extending. China may also get a major boost in the speed of ...
What's the weather like today? Is it hot or windy? Weather balloons can help scientists to find it out. The balloons record wind speed and temperature. They send the information to the scientists 1 are studying it.This kind of project 2 ( do ) by scientists. Nowadays more and more ...
What is strong wind warning? What speed will the wind reach? ... Remember that the wind speeds mentioned in forecasts and warnings are averages, and that wind gusts can be 40 per cent stronger, and stronger still in the vicinity of thunderstorms and squalls. Strong wind warning. Winds ave...
In the poem "The Spring Breeze", for the lines describing the gentle wind, what speed should be chosen? A. Medium B. Slow C. Fast D. Very slow 相关知识点: 试题来源: 解析 B。描述轻柔的风时,语速宜慢,以突出风的轻柔舒缓。选项 A“Medium”(中等)无法体现轻柔。选项 C“Fast”(快)不...
The speed of the wind was 20 mph, regardless of its direction. Speed Speed quantifies the rate of motion. The speed of the stream varied with the rainfall. Common Curiosities What is Speed? Speed is the rate at which an object covers distance. 12 Is Speed a vector quantity? No, speed...