A circular wheel travels along a flat surface at a constant rate of 2.5 feet per

游客2025-02-27 32

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

Aprojectlikelytoevolveinthenearorintermediatefutureisspacetouri
[originaltext]W:Sam,couldyoureviewtheresultsofthesurveyonleisurespo
Thereisapopularbeliefamongparentsthatschoolsarenolongerintereste
Whatcanwelearnabouttheman?[br][originaltext]W:IhavewithmeJimClark
A.阳和汤 B.化痰开郁方 C.丹栀逍遥散合清肝芦荟丸 D.五味消毒饮合化
有关新生儿颅内出血的描述，错误的是A.由产伤和缺氧引起 B.产伤性颅内出血，足
治疗风热感冒、温病初起，常配伍同用的药物是A、麻黄、桂枝 B、桂枝、白芍 C
患者进行了肠梗阻手术之后，因一直未通气，医嘱行肛管排气。肛管插入的深度是（　　）
急性弥漫性腹膜炎的临床表现有A.腹痛 B.发热 C.腹肌紧张 D.肠鸣音增
小儿各年龄分期，正确的是 A.围产期，生后脐带结扎至生后7天 B.新生儿期，

最新回复(0)

A circular wheel travels along a flat surface at a constant rate of 2.5 feet per

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

Aprojectlikelytoevolveinthenearorintermediatefutureisspacetouri

[originaltext]W:Sam,couldyoureviewtheresultsofthesurveyonleisurespo

Thereisapopularbeliefamongparentsthatschoolsarenolongerintereste

Whatcanwelearnabouttheman?[br][originaltext]W:IhavewithmeJimClark

A.阳和汤 B.化痰开郁方 C.丹栀逍遥散合清肝芦荟丸 D.五味消毒饮合化

有关新生儿颅内出血的描述，错误的是A.由产伤和缺氧引起 B.产伤性颅内出血，足

治疗风热感冒、温病初起，常配伍同用的药物是A、麻黄、桂枝 B、桂枝、白芍 C

患者进行了肠梗阻手术之后，因一直未通气，医嘱行肛管排气。肛管插入的深度是（ ）

急性弥漫性腹膜炎的临床表现有A.腹痛 B.发热 C.腹肌紧张 D.肠鸣音增

小儿各年龄分期，正确的是 A.围产期，生后脐带结扎至生后7天 B.新生儿期，

患者进行了肠梗阻手术之后，因一直未通气，医嘱行肛管排气。肛管插入的深度是（　　）