弗兰克-赫兹实验后的一个思考问题 急求!

It was Sunday yesterday. Frank got up early. After eating breakfast he cleaned the house. In the
morning he went to the library . In the afthrnoon he visited Bob , his friend . Then they went to play
soccer . In the evening he began to do his homework . After that , he watched Tv . he went to bod
late.
(答案不唯一)

Frank puts out his hand with a smlie.

是一个人

Some people do not always mature it
Tom Frank to help dig a hole
Not allow us to advance their nine museums
We often have lunch at this restaurant
Our newspaper delivered every morning

Where is Frank ´s book
It is on your desk .

吃完晚饭,爸爸去看书了.妈妈去看电视了.奶奶打扫着房间,弗兰克在他的房间做着作业,姐姐在她的房间玩着电脑里的游戏After dinner,dad to read.My mom to watch TV.Grandma to clean the room,frank in his room doing...

If the weather permits, we are going to have the match next Monday.Fred went out to play after finishing his homework.I left at noon, without staying behind for the result.Allen was gasping when she came up to me.He fell asleep while doing his homework.

I want to go shopping in the afternoon,Let me introduce you to my shopping
list:2 boxes of milk,6 banana ,8 oranges and a hamburger.Wow,so many!

当加速电压低于4.9V时,电子不具备足以改变Hg原子内部的能量,就发生弹性碰撞；反之,就是非弹性碰撞.

Are Frank and Daiv your cousin?

Frank will be the most likely winner of all the players

小题1:（3分）D
小题1:（4分）科学技术的发展进步激发了科幻小说对未来的幻想和展望；（2分，要点“激发”和“幻想”或“展望”）科幻小说对未来的幻想和展望启迪了科学技术的探索，往往是科技进步的先导。（2分，要点“启迪”或“先导”）

（A“认为凡尔纳是宇宙航行真正的先驱”的不是弗兰克，而是齐奥尔科夫斯基；B“完全相似或共通”有误，应该是“在某种程度上相似或共通”；C“幻想和描述创造了今天的世界和科学史”有误，应该是“幻想与劳动共同创造了今天的世界和科学史”）

Early in the Nazi regime of Adolf Hitler, Anne's father, Otto Frank (1889–1980), a German businessman, took his wife and two daughters to live in Amsterdam. In 1941, after German forces occupied The N...

电子离原子中心远,原子状态不稳定,所以能量高
（无穷远处势能为零,越靠近原子核势能越大,也就是楼下说的与1/r成正比,不过符号是负的,你要让电子脱离原子核束缚,就要一定的能量.所以离得远,给很少的能量,电子就脱离束缚了,这就是所谓的不稳定嘛；离得近要给很多能量才行,也就是说稳定）
弗兰克赫兹实验（这个原理是把电子加速到一定速度,让它与汞原子碰撞,把能量传递到汞原子上,让汞原子内的电子得到这些能量发生跃迁）
在1914年用的装置有你所说的问题,因为电子的动能一旦被加速到4.9eV,就会与汞原子碰撞失去能量,无法使汞原子受激到更高能态；（因为这时加速区和碰撞区在一起,电子加速到4.9eV就与汞原子碰撞,失掉了能量,只能重新加速,如此反复,所以只能测到第一激发态）
1920年弗兰克将其进行了改进,证明汞原子内存在一系列的量子态.（这次加速区和碰撞区分开了,可以让碰撞电子能量达到很高）

THE WONDERFUL WIZARD OF OZ
1.The Cyclone
Dorothy lived in the midst of the great Kansas prairies,with Uncle Henry,who was a farmer,and Aunt Em,who was the farmer's wife.Their house was small,for the lumber to build it had to be carried by wagon many miles.There were four walls,a floor and a roof,which made one room; and this room contained a rusty looking cookstove,a cupboard for the dishes,a table,three or four chairs,and the beds.Uncle Henry and Aunt Em had a big bed in one corner,and Dorothy a little bed in another corner.There was no garret at all,and no cellar--except a small hole dug in the ground,called a cyclone cellar,where the family could go in case one of those great whirlwinds arose,mighty enough to crush any building in its path.It was reached by a trap door in the middle of the floor,from which a ladder led down into the small,dark hole.
未完

如果没有其他界限词语的要求的话,
My friend,Frank is 16 years old.He is an outgoing boy.He loves basketball,so do I.We usually play together.He likes hamburgers,you can't belive that he can eat hamburgers for three meals a day.We offen share weekends to watch action movies,such as “Iron Man”.He is my buddy
I have a good friend.She is a pretty girl.She lives in Jiujiang.She is a middle school student.She has big eyes,a small mouth,a small nose and a round face.She is tall and thin.She likes watching TV and playing the basketball.On the weekend,she always plays basketball with her friends in the afternoon and watches TV in the evening.
那就默认这样写咯.

1）
波动性曲折上升,并且振幅越来越大,周期基本不变
2）
电子平均自由程对激发或电离的影响
主要由炉温决定,还与电子速度等有关.
λ很短,相邻两次碰撞间获得能量小,经多次碰撞能量积累到第一激发态的能量时,能使原子激发到激发态,不容易激发到较高能态.
λ很长,相邻两次碰撞间获得能量大,激发到高能态的可能性很大,所以在λ很长,加速电压较高,会使某些电子有足够能量使原子激发到较高能态,甚至电离.
3）
电流的微观表达式为I=nqvs,当拒斥电压增大,到达接收端的电子速度减小,故宏观上电流减小.
4）
碰撞过程及能量交换
此过程在G1G2空间发生,在加速场的作用下,电子获得动能,与原子的弹性碰撞中,电子总能量损失较小,在不断的加速场作用下,电子的能量逐渐增大
5）
实验利用低能电子和汞蒸汽原子的非弹性碰撞,证实原
子能级的量子化.当电子具有的动能为两个能级的能量差就
有较大的几率发生共振吸收,即电子的动能将传给汞原子,使汞原子激发到较高的能级,电子则
失去动能,不能达到收集板极,体现在板电流的改变上.

The noise that she made made everyone awake.
Frank wasn't in the train that has just come.

I spent a busy but happy weekend
Last Sunday,Jim visited Mrs.Brown
Frank,you should do your homework/it is time for doing homework
How about playing football this weekend?
Mary is looking for her lovely kitten.
spend
no

Franke and his friends will go to ski instead of water-park.

Frank's father is a teacher,but his mother is not

是这个意思没错

那是弗兰克-赫兹的改进实验.
方法是将电子加速区和与汞蒸汽的碰撞区分开来,这样就不会出现每当电子被加速到4.9eV就能量就被“碰”掉了.可以在加速区加速到很高的能量,然后再去碰撞,一次性的把汞激发到更高的电位.
测量的方法还是没变.

Frank and dell is your cousin?

Frank had a busy weekend.He played a soccer game with his friends on the Saturday morning.
Then his father asked him to clean the rooms.On Saturday night,he watched TV with his sister.
On the Sunday,he went to the beach and visited the library nearby.And he forgot to do his homework.It took him the entire night to finish it.:)

Are Frank and Dell your cousins ?
Mr. and Mrs. Smith are her grandparents.

吃完晚饭，爸爸去看书了，他老是让弗兰克多看书，他想让他长大成为一位作家。妈妈去看电视了，她的意见和爸爸不一样，她想让弗兰克长大成为一位记者。奶奶打扫着房间，她对弗兰克未来的职业并没有什么看法，她常说，当那些有什么用，安安稳稳过一辈子就好。弗兰克在他的房间里看书，他在这点上比较认同爸爸的观点。姐姐不参与这些，她在她的房间里玩着电脑游戏，她长大想做一个游戏开发者，她正在为她的梦想而努力。
After supper, my father to read a book, he always asked me toread a book, he wanted me to grow up to become a writer.Mother went to watch TV, her opinions and dad are not the same, I want her to grow up to become a journalist. She cleanedthe room, she did not what to think about my future occupation,she often said, when those who have what use, be firm and secure life. My sister is not involved in these, she was playingcomputer games in her room, she grew up to be a game developer, she is working for her dream.

I'm wangNan,a student of No.1 Middle School. I have a gooa friend,Jim.He' an USA girl.We are both in Class Two,Grade Eight.She is 15 years old,one year older than me. We both study hard.I'm good at physices,but she's good at math.We often help each other with lessons.Both of us like helping others. We both like sports very much.Jim enjoy playing basketball.but Ilike palying soccer. She likes green but Ilike red. Tough we are different in my ways,we are good friends

作者是弗兰克鲍姆,故事来源：一天晚上,莱曼·弗兰克·鲍姆在给几个儿子讲故事的时候,突然产生了一个前所未有的灵感,他一边哄孩子们安静下来,一边随手抓起能写字的纸片,兴奋不已地把这个灵感记录下来.这是一个关于翡翠城的故事,也是奥兹国探险故事的最初创意.该书经W·W·丹斯洛为其图解、封面设计,由鲍姆私人出钱在1900年将其出版,并在前两年售出90,000册.
所以作者就是弗兰克鲍姆
看在打这么多字的份上,

B

1.随着电子能量变大,电子和汞原子交替做弹性碰撞和非弹性碰撞,波峰代表弹性碰撞,损失能量少,电流就大,越过阈值后能量显著减小.
2.拒斥电压是什么……都拒斥了那电流应该就是减小了.
网上资料甚多,可以自己查询一下.

F:Long time no see.
好久不见.
D:Yeah!It's great running into you again.
是啊,又遇到你了,真高兴.
F:What have you been up to recently?Pretty busy?
最近怎么样,忙不忙?
D:Yeah,I've been really busy.What about you?
嗯,很忙,你呢?
F:Same here.
我是在nciku(n词酷)中的情景对话中招的,里面还有好多呢,你可以去看看的.

不等于,因为在随着电压的升高,到达板的电子也越多,但是当达道第一激发电位时,只有少数电子达到,随着电压的增高,才会有越来越多的电子达到第一激发电位,所以电流才下降.

强烈谴责那些不用脑子翻译的人……虽说你这求别人翻译的也不肿么道德……算了,为分数……
1.We gave him a lot of work.
2.We'd like to invite you to deliver us a French speech.
3.This model is made by Frank last week.
4.Sally(人名自己回去改去)was very excited for she had never been there.
5.I was so embarrased after hearing that.
6.Mother wasn't told about this.
7.He has already been invited to this meeting.
8.Our city is surrounded by beautiful woods.
9.When will this project be finished?
10.(玩个复杂的~)The result won't be rebealed until 10p.m tonight.
[本人英语专业]

to watch basketball on TV

My friend, Frank is 16 years old. He is an outgoing boy. He loves basketball, so do I. We usually play together. He likes hamburgers, you can't belive that he can eat hamburgers for three meals a day. We offen share weekends to watch action movies, such as “Iron Man”. He is my buddy.

please call FRANK on 635-8890

1.在周末弗兰克经常帮助我学英语.Frank often helps me _with_ my English on the _weekends_
2.He often _helps___ me __to__ learn English.
3.Do you do well in drawing (同义句转换)
Are you _good_____at__ drawing
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Ultimate bodyguards "Aside Frank.Law tacit professional bodyguards,and Rachel.Marroquín world-renowned singer,for her fans crazy to Chizui level.其中的一位给她来信,说要取她的性命,于是,她请来弗兰克做她的保镖.A letter in which she said that her life should take,therefore,she invited Frank to do her bodyguards.两人虽都是本行业中的佼佼者,但却生活在完全不同的世界里.Although the two industries are the standouts,but living in a completely different world.在弗兰克的信念中,确保雇主的安全就是一切,从不与顾客发生感情上的纠葛.Frank in the belief that the security is to ensure that all employers,and customers never occurred emotional disputes.而这次不同,雷切尔的魅力实在无法抵挡,她俩终于坠入爱河.This time,Rachel's charm is irresistible,the two eventually fall into love her.但弗兰克不愿让这种关系干扰他的工作,所以还是与雷切尔保持一定距离.But Frank did not want to let this relationship interfered with his work,keeping a certain distance or with Rachel.雷切尔对此很生气,直到弗兰克用身体挡住射向她的子弹她才明白,什么叫做真爱.Rachel is very angry,until Frank physically block the bullets fired at her,she came to understand,what is love.本片获第65届奥斯卡最佳创作歌曲奖提名.The film was the 65th Oscar Award nominated songs.

Frank often listens to the radio on weekends