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图1是甲、乙两个长方体容器的截面示意图,乙容器中立放有一圆柱体铁块.把甲容器中的水匀速注入乙容器,8分钟后甲容器的水全部注入乙容器中,图2表示乙容器水深的变化情况. (1)从图2中可以看出乙容器...
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图甲乙是物理史上两个著名实验的示意图通过这两个实验人们对光的本性有了比较全面的认识1图甲是英图物理学
如图1是甲乙两个圆柱形水槽的轴截面示意图乙槽中有一圆柱形铁块立放其中圆柱形铁块的下底面完全落在乙槽底
在两个完全相同的容器
和
中分别装有等质量的水和酒精(p
水
>p
酒精
),现将两个完全相同的长方体木块甲和乙分别放到两种液体中,如图2所示,则此时甲和乙长方体木块下表面所受的压强P.
甲
、P.
乙
,以及A.和B.两容器底部所受的压力F
A
、F
B
的关系是A.P.
甲
乙 F
A
B。B.P.
甲
=P
乙
FA>FB.
P.
甲
=P
乙
FA
P.
甲
=P.
乙
F
A
= FB.
如下甲图将一个长方体放在水平地面上请用示意图画出地面受到长方体的压力
一个圆柱形的容器内放有一个长方体铁块现打开水龙头往容器中注水3分钟时水恰好没过长方体铁块的顶面又过了
5/6
3/4
2/3
1/2
甲乙两个长方体容器甲容器中水高18厘米乙容器中水高5厘米从甲容器中倒多少立方厘米的水到乙容器中使得两
2015·长沙水平桌面上放有甲乙两个盛水的容器现把两个形状和体积都相同的物体分别放入两容器中当物体静
两物体受到的浮力相等
两容器底部所受液体压强相等
两物体的质量相等
乙容器中物体密度较大
下面图甲为某反射弧示意图图乙示意兴奋在甲乙两个神经元之间传递的过程H表示物质图丙示意图甲中②点在受到
两个完全相同的容器中分别盛有甲乙两种液体将两个完全相同的小球分别放入两容器中待两球静止后两个容器中的
p甲>p乙;
p甲
F.甲=F.乙;
p甲´=p乙´.
水平桌面上放有甲乙两个盛水的容器现把两个形状和体积都相同的物体分别放入两容器中当物体静止时两容器中液
两物体受到的浮力相等。
两容器底部所受液体压强相等。
两物体的质量相等。
乙容器中物体密度较大。
水平桌面上放有甲乙两个盛水的容器现把两个形状和体积都相同的物体分别放入两容器中当物体静止时两容器中液
两物体受到的浮力相等
两容器底部所受液体的压强相等
两物体的质量相等
乙容器中物体密度较大
有甲乙两个长方体的蓄水池将甲池中的水匀速注入乙池甲乙两个蓄水池中水的高度y米与注水时间x小时之间的函
两个完全相同的圆柱形容器甲和乙底部相连通倒入适量的水.待液面静止后将质量相同的两物块浸没在两容器的水
甲容器中的物块的密度较大
甲、乙容器中的物块的密度一样大
乙容器中的物块的体积较小
甲、乙容器中的物块的体积一样大
甲容器中有13%的盐水300克乙容器中有7%的盐水700克分别从两个容器中取出同样多的盐水把甲容器中
150
270
100
210
图5中水平桌面上有
B.两个相同的容器,分别放有甲、乙两个小球,两球在水中分别处于漂浮和悬浮状态,且两容器中的水面高度相同,则下列说法中正确的是 ( ) A.两球的质量可能相等
两球受到的浮力一定相等
A.容器底部受到的压力比B.容器的小
B.容器中加入盐水后,乙球受到的浮力比甲球的大
水平桌面上放有甲乙两个盛水的容器现把两个形状和体积都相同的物体分别放入两容器中当物体静止时两容器中液
两物体受到的浮力相等。
两容器底部所受液体压强相等。
两物体的质量相等。
乙容器中物体密度较大。
一个圆柱形的容器内放有一个长方体铁块现打开水龙头往容器中注水3分钟时水恰好没过长方体铁块的顶面又过了
5/6
3/4
2/3
1/2
如上56图所示甲乙两个小球分别放在两个装有不同液体的容器中处于静止状态此时容器中液体深度不同但液体对
甲球的密度大于乙球的密度
甲球的密度等于乙球的密度
甲球的密度小于乙球的密度
甲球、乙球的密度关系无法判断
一个圆柱形的容器内放有一个长方体铁块现打开水龙头往容器中注水3分钟时水恰好没过长方体铁块的顶面又过了
放在同一水平桌面上的甲乙两个相同的容器盛有不同的液体现将两个相同的物块分别放人两容器中.当两物块静止
甲容器中液体的密度较大
乙容器底部受到液体的压强较大
甲容器中物块排开液体的重力较大
乙容器中物块受到液体的浮力较大
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Onedayalittlemonkeyandalittlefoxwentouttoplay.Theysawanappletreeontheothersideoftheriver.Thereweremanybigandredapplesonit.Buttherewasnobridgeovertheriver.Themonkeythoughthardandhadanidea.Theypulleddownatreeandputitovertheriverasabridge. ThemonkeysaidMyoldfriendyougotherefirst.Butafterthefoxwenttotheothersidehekicked踢thetreeintotheriverandrantotheappletree.HowcanIgettherewithoutthetree?criedthemonkey.ThefoxlaughedandsaidYoujuststandthereandwatchmeeatingtheapples.Themonkeywasveryangry. Suddenlyitbegantorain.Thewaterlevel水位intheriverrose上涨andthetreeflewawaywiththewater.Youcaneatalltheapples.Butyoucan'tcomebackshoutedthemonkey.Thefoxstoppedeatingandlookedatthemonkeysadly. 1Whatdidthemonkeyandthefoxseeontheothersideoftheriver? A.Abridge. B.Anappletree. C.Aboat. 2Whothoughthardandhadanidea? A.Themonkey. B.Thefox. C.Bothofthem. 3Whatdidtheyputovertheriverasabridge? A.Atree. B.Anapple. C.Amonkey. 4Whywasthefoxsadatlast? A.Becausehewasangrywiththemonkey. B.Becausehecouldn'tcomeback. C.Becausehecouldn'teatapples. 5Whatdoesthestorytellusaccordingtothepassage? A.Thefoxshouldn'tgofirst. B.Themonkeycouldeatapplesfirst. C.Oneshouldn'tcareonlyabouthimself.
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