首页
登录
职称英语
[originaltext] Have you ever dashed across a parking lot in a sudden rainsto
[originaltext] Have you ever dashed across a parking lot in a sudden rainsto
游客
2024-05-12
4
管理
问题
Have you ever dashed across a parking lot in a sudden rainstorm? You might think that you’ll stay drier by running as fast as you can. But in fact, the faster you run, the more drops you’ll run into horizontally, soaking your front. You want to stay as dry as possible, so what should you do: walk or run? A scientist would break this problem into its simplest elements. If there’s no wind, you’ll only get wet from two directions—above as the drops fall on you, and in front as you move into them.The amount of wetness from above is determined by how long you stay in the rain. If you stay outside twice as long, your head and shoulders will get twice as wet. As far as your top is concerned, the faster you run, the better. Running faster means less time spent in the rain. The water you run into is another story. The faster you go, the more rapidly your front will collide with raindrops, but you’ll also spend less time running through them. As it turns out, no matter how fast you go, you’ll always hit the same number of drops from the front. If you slow down, you’ll hit them more slowly, but the total amount will be the same at the end of your trip. Putting the two parts together, top and front, it’s clear that running will indeed keep you drier than walking, but not by very much. It only keeps the top of your head and shoulders drier. Your front will be just as wet no matter how fast you run.
5.What decides the amount of drops that soak your front?
6. Which factor determines the amount of wetness from above?
7.What will happen to your front if you go faster in the rain?
选项
A、What you wear in the rain.
B、How fast you run in the rain.
C、Whether there is wind.
D、Whether it is raining heavily.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3595443.html
相关试题推荐
Cultureshockisaspecialdiseaseforpeoplewhohavesuddenlymovedtoaf
Cultureshockisaspecialdiseaseforpeoplewhohavesuddenlymovedtoaf
Cultureshockisaspecialdiseaseforpeoplewhohavesuddenlymovedtoaf
Cultureshockisaspecialdiseaseforpeoplewhohavesuddenlymovedtoaf
[originaltext](32)Mostpeoplepicturesharksashuge,powerful,frightenin
[originaltext](32)Mostpeoplepicturesharksashuge,powerful,frightenin
[originaltext]WhentheUnitedStatesGeologicalSurveymakesitsannualrep
[originaltext]WhentheUnitedStatesGeologicalSurveymakesitsannualrep
[originaltext]W:Ok,thiswillbemytreat.M:Oh,no,youdon’t.W:Allright
[originaltext]W:Ok,thiswillbemytreat.M:Oh,no,youdon’t.W:Allright
随机试题
74.InJapan’scapitalcityofTokyo,earthquakedangerlimitstheheightof
[originaltext]M:Thatwasalovelyparty,wasn’tit?W:Yes,itwas.Thefoodw
InthefirstyearorsoofWebbusiness,mostoftheactionhasrevolvedaro
在中国建设一个马克思主义政党所遇到的特殊困难不包括()。 A.理论准备不足
9岁,学生。1日前因突起高热、剧烈头痛、恶心伴非喷射性呕吐1次入院。体检:神清,
透皮制剂中加入二甲基亚砜的目的是A.增加塑性 B.促进药物的吸收 C.增加药
1.论述电网发展战略内涵及战略重点。
下列关于有限责任公司的说法正确的是()。A.有限责任公司注册资本的最低限额为人民
窗口指导属于()。A、选择性货币政策工具 B、间接信用控制的货币政策工具
下列水泥稳定料粒基层质量检验的实测项目中,属于关键项目的是( )。A.平整度
最新回复
(
0
)