是PART A里面的对应题~
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是PART A里面的对应题~
1.the temperature at which a 0.5-centimerter gap between 1.0-meter concrete slab in a side walk will close up completely.
答案是confficient of linear expansion.
这一题,求翻译!
2.used to calculate the speed of a lump of clay that hits and sticks to a block of wood suspended as pendulum,give the high to which the block swings and the masses of the block and the clay.
Conservation of both energy and momentum.
这题我知道是动量守恒,但和能量守恒有啥关系?
第二题是不是因为是非弹性碰撞,所以有能量改变?但我怎么判断是弹性还是非弹性~
1.the temperature at which a 0.5-centimerter gap between 1.0-meter concrete slab in a side walk will close up completely.
答案是confficient of linear expansion.
这一题,求翻译!
2.used to calculate the speed of a lump of clay that hits and sticks to a block of wood suspended as pendulum,give the high to which the block swings and the masses of the block and the clay.
Conservation of both energy and momentum.
这题我知道是动量守恒,但和能量守恒有啥关系?
第二题是不是因为是非弹性碰撞,所以有能量改变?但我怎么判断是弹性还是非弹性~
1 就是说水泥路每一米会有一个0.5厘米的Gap,就是我们一般会看到的线,这是因为热涨冷缩.
当温度达到这个gap会涨到完全合起来的时候,温度就达到了线膨胀系
2 这里是重力势能和动能的转变嘛.初中就学过呀
当温度达到这个gap会涨到完全合起来的时候,温度就达到了线膨胀系
2 这里是重力势能和动能的转变嘛.初中就学过呀
有没有一首歌,里面歌词是“this is a part of me”?
as a part of还是as part of作为...的一部分,书上是as part of为什么、
谁能帮我分析从句 I need a spare part for my wheelchair在补充里面句子里充当的是什么
is part of和 is a part of 的区别
请问a part of和part of的区别
part of 与 a small part of 的区别
take part in和take a part in的区别
part of 与 a part of全部的区别
take part in,join和play a part的区别
is part of 和is a part of 的区别?
part of和a part of的区别?
中医学和天文学自从看了中医书籍里面有二十四节气后,我想问的是,在中医学里面二十四节气对应着什么?天文学二十四节气又对应着