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
71
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:https://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
Canexercisebeabadthing?Suddendeathduringorsoonalterstrenuousexe
Heknowslittleofmathematics,and______ofchemistry.A、evenmoreB、stilllessC
A.0.50MPa B.0.60MPa C.0.48MPa D.0.58M
关于骨髓穿刺的临床应用，下列哪项是错误的：A.诊断多发性骨髓瘤 B.确诊白血病
股权投资基金出于企业未来实际业绩与业绩目标可能出现的偏高,会在投资协议中设置（
下列感染过程中最常见的是A.不典型病例 B.潜在性感染 C.隐性感染 D.
小便混浊，色白如米泔，首选的药物是A.木通B.萆薢C.玉米须D.葫芦E.茵陈
油浸式电抗器本体储油柜隔膜破损,引起油劣化加速，由检修人员综合判断，应定性为（）
某公司近来发现其主要产品——电热器滞销，造成大量积压。该公司经分析研究认为：主要
关于行政行为，正确的说法有（）。A.行政行为是指行政主体行使行政职权所作出的能
最新回复
(
0
)
