首页
登录
职称英语
[originaltext]Today most astronomers accept the notion that groups of stars tha
[originaltext]Today most astronomers accept the notion that groups of stars tha
游客
2025-02-09
10
管理
问题
Today most astronomers accept the notion that groups of stars that make up the universe are all moving farther and farther away from each other. but until very recently this idea of an expanding universe was not a theory most European scholars believed in since ancient times and up to about the17th century most of these scholars thought the size of the universe have remained unchanged since the moment of its creation or perhaps forever, with all the stars remaining more or less in place in relation to each other. but that was challenged in the late 17th century by Izic Newton’s idea of gravity as a force of attraction, which contradicted the idea of a university that is static, unchanging. If gravity causes all the stars out there in space to attract each other as Newton said, then they could remain motionless. Sooner or later all the stars will fall in absorb each other. well, scientists then propose a new model, taking Newton’s theory into account, they didn’t want to abandon the idea of motionless stars, but for this model to work, so the stars won’t fall in each other, they had to modify Newton’s law of gravity, so they theorize that for distance as large as those between stars, the gravitation force repels rather attracts. As you might guess, this other contradictions. But this is prettily resolved in the past centuries by currently accepted theory, which says the universe is continuously expanding. You’ll be reading all about that as your homework tonight.
选项
A、Why stars move so quickly.
B、Why few stars have planets.
C、Why stars aren’t moving toward one another.
D、Why stars haven’t moved farther apart.
答案
C
解析
Q:?what?did?some?scientists?try?to?explain?by?suggesting?that?stars?repel?each?other??
转载请注明原文地址:https://tihaiku.com/zcyy/3949945.html
相关试题推荐
[originaltext]OnMondaywetalkedaboutinsects,andhowtheygatherfood.Toda
[originaltext]Todaymostastronomersacceptthenotionthatgroupsofstarstha
[originaltext]Thisisourlastmeetingbeforethecampsarrivetomorrow.I’llg
[originaltext]Thisisourlastmeetingbeforethecampsarrivetomorrow.I’llg
[originaltext]A:IjustfinishedreadingabookofshortstorybyHemlenGarlen
[originaltext]A:IjustfinishedreadingabookofshortstorybyHemlenGarlen
[originaltext]A:IjustfinishedreadingabookofshortstorybyHemlenGarlen
[originaltext]A:IjustfinishedreadingabookofshortstorybyHemlenGarlen
[originaltext]Woman:oh,Jack,I’mgladIcallu.IwanttotellyouIhaveto
(Practical)problemslimitthe(ability)ofastronomerstodeterminethemassof
随机试题
DothefollowingstatementsagreewiththeinformationgiveninReadingPassage
Whydidn’tthewomengototherestauranttohavedinner?[originaltext]M:Darli
Heisdeterminedtocontestthenextelectioneventhoughheknowshemay_______
[originaltext]M:Hello!W:Hello,isMikeavailable?M:ThisisMike.Whoisca
下列关于防火门的设置说法错误的是()。A.防火门通常用在防火墙、防火隔墙和管井
下列关于“名木”的解释中,哪项是错误的?()A.珍贵,稀有的树木 B.具有
初产妇,26岁,孕37周,近1周头痛、视力模糊,昨晚头痛开始加重,呕吐2次,急诊
判断上消化道出血部位最好的检查方法是:()A.内窥镜检查 B.钡餐检查
所谓职业道德,就是同人们的执业活动紧密联系的符合职业特点所要求的( )的总和。
评标委员会推荐的中标候选人应当限定在()人。A.1 B.2 C.3 D.1
最新回复
(
0
)