It is possible to go as high as 16,000 feet (4,900 meters) without supplemental oxygen, giving the jumper up to 75 seconds of free fall. When the plane is lined up properly over the jump site, the skydivers jump out of the plane. At about 2,500 feet (760 meters), the skydiver...
Finally, at the storm's base, if there is a lot of moisture, a huge cloud base develops, giving the tornado something to feed off later, if it gets that far.最终，在风暴云团的底部，如果有很多的水分，就会形成一个巨大的云底，为之后的龙卷风提供能量，前提是如果真的到了这一步。When all t...
Nevertheless, it’s important to point out that the 10,000 step rule is there more to encourage you than to serve as a guideline of how much activity you need. Depending on the type of activity you like to do, you may find that you far exceed this step count each day. Alternatively...
So, how many miles do you walk over the course of 10,000 steps? For most people, walking 10,000 steps is approximatelyfive miles.[5] With that said, factors such as the intensity level of your walk as well as your stride length will determine exactly how far you walk. The calculator...
Stars and other objects beyond oursolar systemlie anywhere from a few light-years to a few billion light-years away. And everything astronomers "see" in the distant universe is literally history. When astronomers study objects that are far away, they are seeing light that shows the objects as...
Using paper chromatography on some marker ink it is found that one of the pigments had a retention factor of 0.25. The total distance the solvent traveled was 8.0 cm. How far did the pigment travel? Convert 36,098,000 to scientific notation. ...
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25,000 9.47 30,000 11.36 35,000 13.26 40,000 15.15 The second chart is computed between a 2.5 ft. stride. This is computed at 2,321 steps per mile for a height of 5 feet 5 inches. No. of Steps No. of Miles 5,000 2.25
—Scott, ___ is it from here to Wanda Cinema? —About ten minutes’ drive. A. how far B. how often C. how long D. how soon A 【解析】句意:-斯格特,从这里到万达电影院有多远?-大约十分钟的车程。A. how far多远,询问距离;B. how often多久一次,询问频率;C. how long多长,询问一段时间...
Madagascar is home to colourful chameleons, fierce fossas and over 100 species of lemur. But With much of the Indian Ocean island’s wildlife facing extinction, its indigenous communities and eco lodges are focused on conserving their precious habitats.