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
38
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
Apunctualpersonisinthehabitofdoingeverythingatthepropertimeand
Our______wereturneddownwithoutanydiscussionatthemeeting.A、prepositionsB
腰麻患者术后去枕平卧的主要目的是A.预防呼吸道阻塞 B.预防麻醉后头痛 C.
一般来讲,股价上涨转为下跌期间都是股票时机,股价下跌转为上涨期间都是股票时机。(
卵子自卵巢排出后如未受精,黄体开始萎缩,萎缩发生的时间是在排卵后A.4~5天
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
伤情严重或者情况特殊,经设区的市级劳动能力鉴定委员会确认,可以适当延长,但延长不
商品归类题 一盒零售食品,内有少量薯条和番茄酱,以及一个牛肉汉堡(上下两层面包
谐振过电压包括()。 A.传递过电压;B.电磁式电压互感器饱和过电压; C
关于桥头跳车的防治措施,正确的有()。A.改善地基性能,提高地基承载力,减少地基
最新回复
(
0
)