首页
登录
职称英语
Andrew fitted an electric toy car with hard rubber wheels that had deep treads a
Andrew fitted an electric toy car with hard rubber wheels that had deep treads a
游客
2024-01-12
66
管理
问题
Andrew fitted an electric toy car with hard rubber wheels that had deep treads and placed the car on a smooth, flat surface. Andrew started the car and a stopwatch at the same time. Andrew stopped the stopwatch as the car crossed the 75-foot mark. He calculated the results of 3 separate trials as shown in the table below.
Andrew repeated the procedure, except he fitted the car with soft rubber wheels that were smooth and lacked treads. The results are shown in the table below.
[br] What was the average time the car with the soft wheels took to cross the 75-foot mark?
选项
A、22.8 seconds
B、33.9 seconds
C、39.8 seconds
D、56.7 seconds
E、170.1 seconds
答案
D
解析
The correct answer is D. The soft wheels data is in the second table. Calculate the average of those three times:(57.0 + 56.4 + 56.7)+ 3 = 56.7
转载请注明原文地址:https://tihaiku.com/zcyy/3356054.html
相关试题推荐
Hundredsofspeciesoffishgenerateanddischargeelectriccurrents,inbursts
Andrewfittedanelectrictoycarwithhardrubberwheelsthathaddeeptreadsa
Andrewfittedanelectrictoycarwithhardrubberwheelsthathaddeeptreadsa
Andrewfittedanelectrictoycarwithhardrubberwheelsthathaddeeptreadsa
Inaboxof10electricalparts,2aredefective.(a)Ifyouchooseonepartatr
RUBBER:TIRE::A、skin:hairB、silver:cutleryC、window:paneD、erosion:ironE、piece
A、saveelectricitybyconvertingunusedsunlightintopowerthroughtheuseofp
Mildelectriccurrenthadbeenthoughtto______overactivebrainregionsthatcau
RUBBER:TIRE::A、skin:hairB、silver:cutleryC、window:paneD、erosion:iron
Andrew’shunchthatMs.Smithwouldlosetheelectionwas(i)______whenheroppo
随机试题
Ahistoryoflongandeffortlesssuccesscanbeadreadfulhandicap,but,if
DISCLAIMER:Thise-mailisconfidentialandshouldnotbeusedbyanyonewho
[originaltext]M:Thetrainleavesevery30minutes.You’refiveminuteslatefo
的通解为=
广大教师科学研究中的道德要求是什么?
下列企业中,适用于品种法计算成本的有()。A.发电企业 B.供水企业 C.采
关于直肠膨出的描述,错误的是A.直肠膨出可能是直肠阴道筋膜与耻尾肌损伤所致 B
属于社会状况评估的是()。A.青霉素过敏史 B.姓名、性别、年龄 C.民族
经营机构应当每( )开展一次适当性自查,形成自查报告。发现违反本办法规定的问题,
与子宫脱垂的相关因素,以下哪项错误A.分娩损伤和产褥早期过劳 B.长期慢性咳嗽
最新回复
(
0
)