As the hang glider and pilot move through the air, they collide with air molecules. The frictional force caused by these collisions is known as drag, which slows the glider down. The amount of drag is proportional to the airspeed of the hang glider: The faster the glider moves, the more...
Let’s start with the basics, like: How fast does the Earth spin now? That depends on where you are, becausethe planet moves fastest around its waistline. As Earth twirls around its axis, its circumference is widest at the equator. So a spot on the equator has to travel a lot farther...
As we all know,the earthquake is inevitable,but we can take some methods to reduce it.First,when the earthquake happen we should hide under the furniture which are very solid(坚固的).Second,we should keep calm,and dont worry about it.Third,we should make sure that the door is open so ...
迅速的；敏捷的
Light moves more slowly when traveling through diamond than when moving through air, and it moves through air slightly slower than it can travel in a vacuum.(Image credit: Shutterstock) Light in a vacuum is generally held to travel at an absolute speed, but light traveling through any material...
Our world now moves so fast that we seldom stop to see just how fast we seldom stop to see just how far we have come in just a few years. The latest iPhone 6s, for example, has a dual-core processor and fits nicely into your pocket. By comparison, you would expect to find a tec...
Our world now moves so fast that we seldom stop to see just how far we have come in just a few years. The latest iPhone 6s, for example, has a dual-core processor and fits nicely into your pocket. By comparison, you would expect to find a technological specification like this on your...
Jump back into the asteroids.js entity file and adding the following code underneath this.parent in the update function:What this does is check the position of the asteroid at the end of each update and, if it's outside of the game area, moves the asteroid to the other side of the ...
8. Do you have any___(主意) on how we should___(保护) our earth?9. Dad and Mum___(希望) that Mia can remember: No___(疼痛), no gain.10. It is a___(宽阔的) river and the water moves fast. 相关知识点: 试题来源: 解析 1. through; storms 2. ideas; protect 3. hope...
1. What will the man do this afternoon? A. Head for the hospital. B. Go swimming. C. Fix the air conditioner. 2. Where are the speakers? A. At a zoo. B. In the street. C. At a museum. 3. What does the w...