首页
登录
职称英语
A circular wheel travels along a flat surface at a constant rate of 2.5 feet per
A circular wheel travels along a flat surface at a constant rate of 2.5 feet per
游客
2024-01-12
27
管理
问题
A circular wheel travels along a flat surface at a constant rate of 2.5 feet per second. How many complete revolutions will the wheel make in 50 seconds if its diameter is 3 feet?
选项
A、6
B、10
C、13
D、14
E、19
答案
C
解析
50秒内轮子走过的距离:轮子的周长(πd)×圈数。50×2.5=π×3×revolutions=13<revolution<14。
转载请注明原文地址:https://tihaiku.com/zcyy/3354777.html
相关试题推荐
Howmuchlongeristheedgeofacubewithasurfaceareaof1,350thantheedge
Acircularwheeltravelsalongaflatsurfaceataconstantrateof2.5feetper
Inthefigureabove,theareaofthecircularregionwithcenterOis16π,ifAB
Dr.TonegawawontheNobelPrizefordiscoveringhowthebodycanconstantlycha
ElNino,theperiodicabnormalwarmingoftheseasurfaceoffPeru,aphenomenon
In1974alargeareaofthesurfaceofMercurywasphotographedfromvaryingdis
Incontrastwithadarksurfaceanditstendencytowardheatabsorption,alarge
[img]ct_gre5image038[/img]Arectangularlabelisattachedtoarightcircularc
[img]ct_gre5image022[/img]If9treesareoriginallyplantedinacircularpatte
[img]ct_4image006[/img]Asquaredartboardhasfourdarkcircularregionsofra
随机试题
Marketingbye-mailingisontheincrease.Comparedtoothermedia,e-mailme
Whatproblemdoesthewomanhave?[originaltext]W:Iwanttoregisterforthism
[originaltext]M:Youlikelivinginthecity,don’tyou?W:Oh,Iloveit.It’s
1、资料(一) 鑫龙制药(集团)有限公司(以下简称鑫龙制药或公司)是一家较早成
非公开发行违规担保是否解除()。 Ⅰ.提供互保 Ⅱ.交易所已
男性,21岁,野炊后发热等腹痛,里急后重,大便次数明显增加,脓血便。便培养SS琼
330kV及以上变电站应安装(____),220kV及以下变电站应预留应急电源接
通过()的变革尝试,使控制性详细规划在法律的严肃性方面取得了进展。A.机构
下列结节性甲状腺肿的手术适应证,错误的是A.有压迫症状 B.伴有甲亢 C.疑
下列条件不属于出口货物退税的必要条件()。A.必须是属于增值税、消费税征税范
最新回复
(
0
)