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

游客2024-01-13 53

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:http://tihaiku.com/zcyy/3360237.html

相关试题推荐

Constantshowersarecharacteristic________thesummerhere.A、forB、toC、ofD、wit
Acircularwheeltravelsalongaflatsurfaceataconstantrateof2.5feetper
Thetopsurfaceareaofasquaretabletopwaschangedsothatoneofthedimensi
Acircularrim28inchesindiameterrotatesthesamenumberofinchespersecon
MachinesXandYrunatdifferentconstantrates，andmachineXcancompleteace
Inthefigureabove,theareaofthecircularregionwithcenterOis16π,ifAB
MostofEarth’ssurfaceisocean.Theoceanfloorisinaccessibleforextensive
Whenevidenceoffinancialwrongdoingbyanelectedofficialsurfaces,itisthe
In1974alargeareaofthesurfaceofMercurywasphotographedfromvaryingdis
Incontrastwithadarksurfaceanditstendencytowardheatabsorption,alarge

随机试题

Thefamous______GoldRushbeganintheU.S.inthemid-nineteencentury.A、New
WhatcanwelearnaboutriversinAustralia?[br][originaltext]Atleasts
热力站加热器在选择设计时，对列管式、板式加热器传热系数的计算应乘以污垢修正系数(
假设系统中有三类互斥资源R1、R2、R3，可用资源数分别是9、8、5。在T
以下哪种说法是错误的A.大肠埃希菌硫化氢试验阳性 B.硫化氢试验常用于区别肠道
切牙舌侧移动1mm需要间隙A.1mm B.3mm C.2mm D.2.5m
31、电流互感器的电流误差，一般规定不应超过（）。（A）5％；（B）10％
国家对入境可用作原料的固体废物实行（）制度。 A.装运前检验B.强制性认证
根据企业所得税法律制度的规定，下列各项中，不得在企业所得税前扣除的是（）。A.
男性，32岁，胸骨左缘第3肋间有舒张早期递减型吹风性杂音，诊断可考虑主动脉瓣关闭

最新回复(0)

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

Constantshowersarecharacteristic________thesummerhere.A、forB、toC、ofD、wit

Acircularwheeltravelsalongaflatsurfaceataconstantrateof2.5feetper

Thetopsurfaceareaofasquaretabletopwaschangedsothatoneofthedimensi

Acircularrim28inchesindiameterrotatesthesamenumberofinchespersecon

MachinesXandYrunatdifferentconstantrates，andmachineXcancompleteace

Inthefigureabove,theareaofthecircularregionwithcenterOis16π,ifAB

MostofEarth’ssurfaceisocean.Theoceanfloorisinaccessibleforextensive

Whenevidenceoffinancialwrongdoingbyanelectedofficialsurfaces,itisthe

In1974alargeareaofthesurfaceofMercurywasphotographedfromvaryingdis

Incontrastwithadarksurfaceanditstendencytowardheatabsorption,alarge

Thefamous______GoldRushbeganintheU.S.inthemid-nineteencentury.A、New

WhatcanwelearnaboutriversinAustralia?[br][originaltext]Atleasts

热力站加热器在选择设计时，对列管式、板式加热器传热系数的计算应乘以污垢修正系数(

假设系统中有三类互斥资源R1、R2、R3，可用资源数分别是9、8、5。在T

以下哪种说法是错误的A.大肠埃希菌硫化氢试验阳性 B.硫化氢试验常用于区别肠道

切牙舌侧移动1mm需要间隙A.1mm B.3mm C.2mm D.2.5m

31、电流互感器的电流误差，一般规定不应超过（）。（A）5％；（B）10％

国家对入境可用作原料的固体废物实行（）制度。 A.装运前检验B.强制性认证

根据企业所得税法律制度的规定，下列各项中，不得在企业所得税前扣除的是（）。A.

男性，32岁，胸骨左缘第3肋间有舒张早期递减型吹风性杂音，诊断可考虑主动脉瓣关闭