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
29
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/3107214.html
相关试题推荐
Atraintravelingataspeedof80mphentersatunnelthatis0.5milelong.T
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.
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.T
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.
Atraintravellingataspeedof75mphentersatunnel2—mileslong.Thelengt
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.
随机试题
Foreignlanguageteachersofthisuniversityarebusydesigningatestofspoken
如下图,ABCD是一个梯形,E是AD的中点,直线CE把梯形分成甲、乙两部分,其面
已获利息倍数也称()倍数。A.税前利息 B.利息保障 C.利息费用 D.利
患者,女,34岁,已婚。2年来月经量逐渐减少,现闭经半年,带下量少,五心烦热,盗
下列各项中,不符合内部牵制的要求的是()。A、出纳人员管票据 B、出纳人员
关于信用的说法,正确的有( )。A.信用只能采用货币借贷形式 B.经济活动中
()是地球上最大的生态系统,包含着无数小的生态系统。A.生物圈 B.岩石圈
下列哪项不属于三因制宜中的“因人制宜”A.老人多虚,治宜补法,实邪须攻,应兼顾扶
Gracey刮治器刮治磨牙近中用( )。A.13/14号 B.5/6号 C
关于A型胃炎,下列哪项是正确的?A.较常见 B.大多数由幽门螺杆菌感染引起
最新回复
(
0
)