知识大全九年级物理答案.急

Posted 2022-07-27 知

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九年级物理答案..急

第一题A
这一题考相对运动，C，D不用解释，B正确是因为乘客所坐的车速度比被观察的车速度慢。
第二题D
这一题考力矩，杠杆平衡是因为两个相反方向作用的力矩相等。
第三题C
这一题考气流流速与压强的关系，流速越大对接触面的压强越小。
第四题
不知道这里的邮轮质量是指空载还是满载。
如果是空载，质量就是5000000，如果满载，质量就是15000000。后一个空格的答案是前一个空格答案乘以10。
第五题
平行于弹簧伸缩方向的力；4；8。
第六题
100J；0J；10N
恒力做功等于力的大小乘以物体在力的方向上运动经过的距离。因为是匀速运动，摩擦力和拉力是一对平衡力，大小相等，方向相反。
第七题
输出；输入；100%或1
之一题考概念，类似于背书。
第八题
小；大；把人推向车身
这和之前风筝的题目考的是同一个知识点。
第九题
同学爬楼的时间t、楼房的高度h；秒表、皮尺；mgh/t
回答完毕。

珍爱生命小短文急

珍爱生命，拒闯红灯As you know，the rules of the traffic is very imporTant. But recently there are some pedesteians always run red lights who didn"t realize the bad results becamse of their behaves. For example, disturbing the normal turns of the traffic, causing a series of aidents danger for people\'s lifies and bad spirit in society . Of cause if you broken the rule you would be punished like warning and paying the money for your behave. In my opinion,obey the rules of traffic is the responsibility of evevryone but not the thing we have to do under other people\'s asking. love life,refuse running red lights!珍爱生命爱护地球I recently read, "If the Earth\'s remaining three days of life" feeling a lot of this article. This essay describes is this: the Earth has only three days of life. "I am" very alarmed, even the insects are usually afraid of death I will now have to face the advent of very frightened. By this time, "I" know that there are a lot of good things, but I have not noticed. In three days I have met a lot of things, gradually bees the mind. Three days have passed, and the face of death to e, but I did not drop tears fall.
From this writing that I learned that the world is beautiful, there are many beautiful things. Sometimes, although there are some disappointments, but this is also an experience, a very rare experience. If and when their lives will be at the end, she wanted to experience the experience is unlikely.
This essay I recognize that life is very precious. Whenever I see a news item that some university student who can not stand the pressure to learn, suicide or run away from home, my heart was always in pain. Although I know that their learning is very bitter, but it should not mit suicide 呀! He should also think about their own future, their own well-being of the future, must not be so easily give up their lives.
This is an essay also let me know: you should be able to support hard, withstand temper. Only be able to support the pain in order to withstand temper yourself to bee stronger, and better academic performance also will be able to. When his classmates had a great admiration a character, may have thought of these great men, he had the number of sweat flow, after the number of endurance test was the remarkable results of everybody distressing 呀!
Reading, reading, I can not help but think of our mon homeland of humanity - the Earth. Our technology may be developed than ever before, and perhaps our food, clothing, shelter, a lot better than before, but have you ever thought that in we are developing at the same time, the earth has not aged. Of view, the former brook no longer exist, replaced by a suession of people met on the disgusting smell ditch; before the air is very fresh, but now the air and bad days than in the past is simply to do 呀 .. ....
Let us cherish life, caring for the earth, doing a live a worthy person bar.

实习工作总结急！!

我只能告诉你怎样写好，感谢领导+对公司的认识（很重要）+对岗位认识+成绩+不足+下一步目标，最重要写出自己的信心

这道题怎么写啊？急

x+5/6x=11/9
17/6x=11/9
X=22/51

急！请面板专家帮忙！

温馨提示：回复只是给您提供参考意见，不能代替临床诊断。最后确诊还请到相关医院就诊：
可能是痒疹,建议去医院面板科就诊.
痒疹（Prurigo）
是一组急性或慢性炎症性面板病的总称。好发于四肢伸侧瘙痒性的面板病。面板损害多是孤立的丘疹或结节，愈后留以色素沉着，区域性皮损处有剧烈瘙痒。病程慢性，有时数月或数年不愈。痒疹有不同的命名，没有一致的分类方法。由于临床表现不同，在本书中把痒疹分称为小儿痒疹、寻常痒诊、结节性痒疹、妊娠痒疹和夏季痒疹等。【诊断】根据皮疹多为红斑、丘疹、结节损害，对称弧立发生，好发四肢伸侧，尤以上肢明显。皮疹愈后留有色素沉着斑片，伴剧烈瘙痒，病程慢性，不难诊断。
【治疗措施】
目前没有理想的方法治疗，尤其是根治有一定困难。最有效的方法是寻找和消除致病因素，在日常生活中，要注意防止虫咬，要注意改善饮食状态，纠正胃肠道的功能紊乱。消除体内感染病灶，积极治疗体内疾病。注意改善营养及卫生状态。
1.抗组织胺药物治疗
扑尔敏、赛瘐啶、维生素C；息斯敏10mg，每日1次；特非那丁60mg，每日2次；新敏乐8mg，每日2～3次；仙特敏10mg，每日1次；也可用西米替丁（Cimetidine）400mg加入5%葡萄糖氯化钠注射液500mL静滴，每日1次，对止痒有一定效果。
2.对皮疹泛发，症状严重者可以给予小量皮质类固醇激素治疗，如强的松10mg，每日3次，以暂时缓解症状，但停药时易复发。

懂音乐的进来下急

乱世巨星呵呵陈小春唱的~~

这是什么字谢谢急

篆书款。
释文右起：
吴玉花制。

六年级数学题！急

小明：（53-5）÷1/2=96页
小刚：（53+7）÷5/8=96页

初二物理声的利用～！急！

884/340-884/x=2.43
x=5200
金属可能是铁
附：
声音的传播需要物质，物理学中把这样的物质叫做介质。
声音在不同的介质中的传播速度：
真空 0m/s（也就是不能传播）
空气（15℃） 340m/s
空气（25℃） 346m/s
软木 500m/s
煤油（25℃） 1324m/s
蒸馏水（25℃） 1497m/s
海水（25℃） 1531m/s
铜（棒） 3750m/s
大理石 3810m/s
铝（棒） 5000m/s
铁（棒) 5200m/s
声音在不同的物质中的传播速度不同。

一道物理计算题，急

90+30=120 120/2=60度

知识大全 九年级物理答案.急