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【英语时差8,16】斜坡物理学(上)

时间:2015-11-30 07:51来源:互联网 提供网友:yajing   字体: [ ]
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Last time we discussed a classic physics question. Drop two objects of different mass, say a bowling1 ball and a golf ball, from a high building. Which Hits The Ground First? The answer?They hit at the same time. The more massive2 object has more “stuff” for gravity to act on, but because it’s more massive, it also takes more to get it to move. The less massive object has less “stuff” for gravity to act on, but is easier to move. The end result is they fall at the same rate. This Seems Hard To Believe… Heavier things just seem like they should fall faster. That may be partly due to the fact that we can’t test it easily — you don’t really want to drop heavy things off of buildings just out of curiosity.


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1 bowling cxjzeN     
n.保龄球运动
参考例句:
  • Bowling is a popular sport with young and old.保龄球是老少都爱的运动。
  • Which sport do you 1ike most,golf or bowling?你最喜欢什么运动,高尔夫还是保龄球?
2 massive QBRx2     
adj.巨大的,大规模的,大量的,大范围的
参考例句:
  • A massive sea search has failed to find any survivors.经过大规模的海上搜救仍未找到幸存者。
  • He drank a massive amount of alcohol.他喝了大量的烈酒。
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