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
2025-02-27
8
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/3974799.html
相关试题推荐
Howmuchlongeristheedgeofacubewithasurfaceareaof1,350thantheedge
Acircularwheeltravelsalongaflatsurfaceataconstantrateof2.5feetper
Thetopsurfaceareaofasquaretabletopwaschangedsothatoneofthedimensi
Acircularrim28inchesindiameterrotatesthesamenumberofinchespersecon
MostofEarth’ssurfaceisocean.Theoceanfloorisinaccessibleforextensive
In1974alargeareaofthesurfaceofMercurywasphotographedfromvaryingdis
f(t)=ktforallt,wherekisaconstant,andf(3)=1/2ColumnA
[img]ct_gre5image022[/img]If9treesareoriginallyplantedinacircularpatte
[img]ct_4image006[/img]Asquaredartboardhasfourdarkcircularregionsofra
Johnisbuildingacircularfencearoundhiscircularpool.Thepoolis26feet
随机试题
Whatdoesthepassagemainlydiscuss?[br]Theauthormentionsthetrailpheromo
Thepredictabilityofourmortalityratesissomethingthathaslongpuzzled
Whowantstopayfor"D"-qualityplumbing(管道)?Flytheskieswitha"D"-
D由于二阶微分方程的通解中应该有两个独立的未知常数,故可排除A、B项。将C、D项代入原方程,C项代入后等式两边不相等,故排除C项,D项代入后等式两边相等。
素质教育的核心是创新精神和实践能力的培养。( )
改造主义课程理论的代表人物是()。A.利文斯通 B.贝格尔 C.施瓦
煎药的时间错误的是()。A.花叶及芳香类药物煎煮时间宜短B.根茎、果实、种子类
(2022上半年真题)李老师把作业从难倒易分成了ABC三类,他在班上特意交代:学
经纬仪水平角测量的的操作步骤是()。A.对中→整平→测角 B.安置→对中
施工进度计划的调整应包括的内容有( )。A.施工组织设计的调整 B.工作关系
最新回复
(
0
)