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
2024-08-18
20
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O.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=lminute
转载请注明原文地址:https://tihaiku.com/zcyy/3724401.html
相关试题推荐
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.T
Beingapopstarcanbequiteahardlifewithalotoftraveling____heavysched
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.
Atraintravellingataspeedof75mphentersatunnel2—mileslong.Thelengt
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.
Whentraveling,somepeoplethinkprotectingone’ssafetyismostimportantwhil
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.Th
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
Terrorisnotalwaystheeffectofforce;andanarmamentisnotavictory.Ify
A.disgracefulB.imperfectC.holdD.considerationE.approvedF.acco
4月1日,沪深300现货指数为3000点,市场年利率为5%,年指数股息率为1%,若交易成本总计为35点,则5月1日到期的沪深300股指期货()。A、在3
—Didyouscoldhimforhiscarelessness?—Yes,but______it.A、I’dratherdoB、I
刺激蝶窦引起的反射性疼痛的部位是A.颞部 B.鼻咽后部 C.颧部 D.耳部
振捣是保证混凝土密实的关键。为了避免漏振,应使振点均匀排列,有序进行振捣。并使振
A.君药B.臣药C.佐药D.使药E.药引在中医处方中为辅佐药,起到引药归经或协助
有抗铜绿假单胞菌作用的是A:氨苄西林 B:阿莫西林 C:氨氯西林 D:青霉
王平是凤凰公司的经理,李强的所有朋友都在凤凰公司工作。胡斌是李强的朋友。凤凰公司
患者反复出现一些想法,明知不必要赛或不合理,但无法控制,该症状为 A.联想散
最新回复
(
0
)