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
2024-08-16
4
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/3722478.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
WhydoesSarahatetraveling?[img]2016m3x/ct_eyyjsdz2014c_eyyjsdc_0195_20163[/i
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.T
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.
Atraintravellingataspeedof75mphentersatunnel2—mileslong.Thelengt
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
We’reworking______theclocktoaccomplishtheproposalbeforeTuesday.A、afterB
A—toholdameetingE—finalsittingB—workingpartyF—formalsittingC—meetingi
[originaltext]M:Ican’tfindthekindofjoggingshoesIwantanywhereinthe
患儿,4岁,因右下肢不能站立行走,伴有不愿言语,咳嗽乏力,呼吸浅快,腱反射消失等
α-干扰素首选用于A.慢性乙肝 B.急性乙肝 C.高代谢病 D.失代偿性肝
劳动安全卫生管理制度不包括( )。A.重大伤亡逐级上报制度 B.安全生产检查
()平衡计分卡四个方面的指标不是必需的,相互的驱动关系也不明显。A.企业级
A.政府承担 B.受种者或者其监护人承担 C.可以经营疫苗 D.不得经营疫
属于α1受体阻断剂的药物是A.特拉唑嗪 B.西地那非 C.普适泰 D.他达
女性,36岁,1年来乏力,发热,关节痛,面颊部有蝶形红斑,口腔鼻腔黏膜溃疡为无痛
最新回复
(
0
)