首页
登录
职称英语
A train traveling at a speed of 80 mph enters a tunnel that is 0. 5 miles long.
A train traveling at a speed of 80 mph enters a tunnel that is 0. 5 miles long.
游客
2023-10-17
75
管理
问题
A train traveling at a speed of 80 mph enters a tunnel that is 0. 5 miles long. The length of the train is 0. 25 miles. How long does it take for all of the train to pass through the tunnel, from the moment the front enters, to the moment the rear emerges?
选项
答案
One minute．
解析
列车需要运行的总长度为0．5+0．25=0．75miles=3／4miles，列车的速度为80mph，将其化成分钟为80／60=4／3mpm，因此需要的时间为3／4×4／3=1minute
转载请注明原文地址:http://tihaiku.com/zcyy/3105030.html
相关试题推荐
WhydoesSarahatetraveling?[img]2016m3x/ct_eyyjsdz2014c_eyyjsdc_0195_20163[/i
WhydoesSarahatetraveling?[img]2016m3x/ct_eyyjsdz2014c_eyyjsdc_0195_20163[/i
WhydoesSarahatetraveling?[img]2016m3x/ct_eyyjsdz2014c_eyyjsdc_0195_20163[/i
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.T
Beingapopstarcanbequiteahardlifewithalotoftraveling____heavysched
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.
Atraintravellingataspeedof75mphentersatunnel2—mileslong.Thelengt
Whentraveling,somepeoplethinkprotectingone’ssafetyismostimportantwhil
Supposeyouareatouristandyouwanttoexperienceanewwayoftraveling.Writ
许多考场周边的小旅馆价格直逼四级酒店。(surgeto)Pricesatmanysmallhotelsneartestcentershave
随机试题
[originaltext]Theywillwritetotheirhomeofficetowaivetheirclaim.[/origi
InthebookMenAreFromMars,WomenAreFromVenus,theauthorstatesthat
Believeitornot,opticalillusioncancuthighwaycrashes.Japaniscasei
[originaltext]Todaywetalkaboutproverbs.[16]Aproverbisashort,well-k
以下关于合同变更的叙述中，（）是不正确的。A.合同变更一般处理程序如下：变
采用颠簸累积仪法测定路面平整度时,测试速度以（）为宜。A.40km/h
关于休克病人几个监测指标的叙述，以下哪项不正确：A、精神状态反映脑组织血液灌流情
甲房地产公司的写字楼A在建工程的用地是3年前通过出让方式取得的，土地使用权年期为
唐朝时，中日文化交流最杰出的使者是（）A.张骞 B.玄奘 C.鉴真 D.甘
A.稻芽 B.鸡内金 C.麦芽 D.神曲 E.山楂能回乳疏肝的药物是
最新回复
(
0
)
