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

游客2025-02-23 1

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。

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

Howmuchlongeristheedgeofacubewithasurfaceareaof1,350thantheedge

DISPARATE:A、helpfulB、increasingC、constantD、homogeneousE、convincingD

Thedriverwasexcessively______,constantlyapologizingforthecar’spoorsusp

Astheyearswentby,Kingsley’slettersdisplayedhimdecliningintoaconstant

SEPTIC:A、constantB、consistentlyarrangedC、devoidofinfectionD、ofunidentifie

DISPARATE:A、helpfulB、increasingC、constantD、homogeneousE、convincingD

Scientistsbelievethatbyraisingatmosphericpressureandsurfacetemperature,

Whenhomeisapproximately2,000feetunderthesurfaceofthesea,itischalle

Infrigidregionsalayerofpermafrostunderthesoilsurfacepreventswaterfr

Ryan’s______botheredhisfriends,whotiredofinstabilityandconstantchanges

Giventhelackoffitbetweengiftedstudentsandtheirschools,itisnots

Thewriter-producerplayedaveryimportantroleintheshowandhasthe______

______,thepresidentisnotabletogethisownwayoneveryissue.A、Popularas

安全生产考核指标隐患类的是（）A.安全生产总目标 B.安全生产管理人员到

洋务运动欲“自强”而不强的结局，从根本上说是因为（）。A.没有坚决反对西方列强

马斯洛的需求层次理论认为，人的需求可以跨层次实现。()

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