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共找到 1615223 与itwasthat目前有两种观点 相关的结果,耗时1402 ms
(2008•朝阳区二模)两个同学做“测平均速度”的实验,如图是小车滑下过程的示意图.表1是他们未完成的实验记录.(1)请你将表1补充完整.表1路程s/cm时间t/s平均速度v/(cm•
物理
.6 s2=40.00
单位时间中速度变化越快加速度越大这句话中的加速度有正负之分吗-4m/s变为0m/s与2m/s变为0m/s这两个加速度的正负号不同题目中也没有表明指的是是加速度大小但是前者却大一些为什么
物理
△S=A*T平方△S怎么算?那a前系数不是一咋算啊?
数学
It's a beautiful place,but there are so many people there that I couldn't 为but there are so many people there that I couldn't find a p
英语
oper place to
5题英语填空~50分1.- Are they still arguing about the plan?-Yes, they haven"t made a d_______on how to work on the plan.2.- It"s dangerous fo
英语
you to swim a
He's a silly man.Don't talk to him any more.I't a ___ of timeA.wastingB.waste
英语
today is Saturday .But many people don't go out to S_____the weekend ,because it's snowing heavily.i is c_____ outside.On such s_____
英语
ays,most peopl
there's a noodle house near our school .There’s a noodle house near our school. It sells many kinds of 11 . It isn’t very large bu
英语
pretty 12
如图,在△ABC中,AB=6cm,AC=BC=5cm,点P从点A出发沿AB方向以1cm/s的速度做匀速运动,点D在BC上且满足∠CPD=∠A,则当运动时间t=s时,以点C为圆心,以CD为半径的圆与AB相切.
数学
一小物体从光滑斜面上的A点无初速下滑,经过B进入水平面BC,设物体经过B前后速度大小不变,最后停在C求(1)斜面倾角a(2)物体运动总路程t(s)0.00.10.2.0.80.9.v(m/s)0.00.51.0.1.21.0.
物理
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