超級矛盾 中子由2d u夸克組成 質子是2u d夸克組成 啊夸克是基本粒子 電子也基本粒子 結果中子衰變成質子 阿然後附帶中子

單元3 物質的組成與交互作用 山 強核力 主題 Z6 強核力與弱核力 (3) 強核力的特性 日本物理學家湯川秀樹在1935年提出強交互作用(strong interaction)的 理論,他認為在質子與質子間,質子與中子間,以及中子與中子間有一 種新的形式的力,和之前已知的力截然不同,這種力是很強的吸引 力,甚至強過庫侖靜電力一百倍,因此稱為強核力,亦稱為強作用、強 交互作用或强力(早期亦稱為核力):強核力的大小足以將質子與中子 束縛在一起,形成穩定的原子核(如圖所示)。湯川秀樹的理論後來獲 得實驗證實。 ② 夸克間的作用力 質子 + 原子核 強力F 質子 由於我們已經知道買子與中子都是由更小的夸克所組成的,所以夸克之間也必然有某種力,將3 個夸克束縛成質子與中子。物理學家在1970年,透過實驗與理論研究深入理解夸克之間的力, 發現湯川秀樹所提出的強力看成是夸克之間束縛力的延伸,因此無論是夸克間的力或是湯川秀 樹所提出的核子間的力,我們一般都通稱為強核力。 強核力 存在質子、中子、夸克等粒子之間,使之来 縛在一起,形成穩定的原子核。 1. 與核子所帶的電荷無關:原子核是由質子與中子所組成,所以質子與中子也就稱為核子。強 ˙核力不僅存在於質子與質子之間,質子與中子以及中子與中子之間均依賴強核力結合在一 起,因此強核力與核子所帶的電荷無關。 2.作用的有效距離很小:強核力是一種短程力,其作用範圍比原子核的大小選小(約1.4×10-5 公尺以內)。在該力作用的區域內,其引力作用遠大於靜電作用力(強核力比靜電力約大100 倍):在長距離範圍時(大於1.4x10"公尺),此力迅速遞減至零。 3. 有飽和性:核子只與鄰近的核子有強核力的作用,無法與原子核中較遠處的核子發生作用, 此性質稱為強核力的飽和性。 ●雜核力的前因一中子的衰變 1. 實驗中發現原本在原子核裡很穩定的中子,若單獨存在(稱為自由中子),則其性質變得不 穩定,經過約十餘分鐘,中子就會轉變成質子(自由中子的平均壽命約為887秒)。 2. 中子衰變時會釋放一個電子和一個反微中子而成為質子,稱為衰變,如圖所示。同樣的衰 變過程在一些原子核中也存在。 中子 → 質子 + 電子+反微中子 電子 原子核\ ~0.8fm 質子 1~3fm 0 中子 (夸克 自由中子 電子 反微中子 3 6 弱核力 1. 物理學家發現衰變過程不能用已知的強核力、電力、磁力、重力去解釋,所以便設想出一 種全新的機制、一種全新的交互作用來說明β衰變。 2. 美國物理學家費米(Fermi)在1937年提出交互作用的概念,認為中子在衰變過程中所發射 的電子,應該是經由某種作用之後方能產生。該作用遠小於電磁力的大小,而且僅能在比核 子更小1000倍的範圍內產生影響,所以稱為弱枝力,亦稱為弱作用、弱交互作用或弱力。 3. 弱核力發生在許多放射性元素的衰變過程,改變了物質的本質,例如:原子核的中子若衰變 後變成了質子,則原子序因此改變(加),變成另一種原子。

請求英文大神🙏想問問以下這些句子的文法或單字用法哪裡有錯（非常感謝🙏 1.Since the COVID-19 pandemic happened, it has impacted our daily lives severely. 2.Unfortunately, t... 繼續閱讀

1、2🙏

3. With today's smaller family units, many young people miss out on close relationships with grandparents. Similarly, many elderly people lack interactions with young relatives. These links between generations are 1_ as they encourage learning, understanding and closer community ties. A great example is the friendship between Alessio, in his twenties, and Federica, an elderly woman. They share an apartment and support each other, yet they are not grandmother and grandson. Alessio teaches Federica how to use her smartphone and Federica gives Alessio lessons in cooking risotto. They share an apartment in a new kind of_2 that brings benefits to old and young generations. Young people are often unable to afford high rents, or a 3 for their own home. Elderly people are living longer, and frequently lose touch with their own families who choose to live in other cities or other countries. Sharing housing with people of a different generation can provide financial and emotional support; and help__4_ stereotypes. Now, many countries like Spain and Singapore are encouraging the old and the young to live _5__. This kind of housing may keep the old and young generations learning from each other, as it was in the past.

請問第2題為什麼選A，其他選項不行嗎

e 30 ng e 三、綜合測驗(共0分,每題0分) 28 1. In Helsingborg, a small city on the coast of southern Sweden, 72 people have been chosen to take part in a social experiment. The name of the project is Sällbo, a combination of the 10 Swedish words for a group of companions and living. The goal is to bring the young and the old closer together. All of the _1_ live in the same apartment building. Both groups of residents must sign a contract agreeing to spend two or more hours a week with someone from the other generation. The project, launched in 2019, is run by a housing company and was embraced by the city government, 2_ provided the funds. All of the tenants have their own apartment, but they can also use shared areas of the building, which are designed to encourage social interaction. There is a gym, a living room, a crafts room, and a kitchen area, so both generations can live _3__ and enjoy activities together. Thanks to the design of the building, it is also easy for the young residents to check on their elderly neighbors. Y Modul cu- loig em_4_, the aim of the project was to help the elderly feel less lonely. However, the Sällbore team soon realized that many young people were also _5__ from the friendships they had formed with the older residents. Take a look at the bonds created between the two generations in the Sällbo project. We should try to bring generations together rather than keep them apart. Han Bho (1)(B) (A) relatives (B) participants (C) engineers (D) secretaries o abogdan (2) A (A) which (B) that (C) what (D) it JOM (3)(O)(A) in a row (B) in return (C) side by side (D) step by step (4)(O)(A) Enthusiastically (B) Oddly (C) Substantially (D) Initially (5)(#(A) benefiting (BVexceeding (C) proposing (D) budgeting teach alopov (ob de zima as a mi sdt ? man Estonia menang

急！！高二英文一題 求好心人士提供詳解解惑😭😭😭 不知道為什麼是用過去式而不是完成式TTTT

< 。 我: a couple, Iz1 saw the interaction between Cathy and Eric as if they but actually they just first met last week. (A) be (B) were (C) is (D) has been

第18行的require mean這兩個不會動詞相剋嗎 還是省掉了關代🤔

dit F C n 16 transportation in rush hour. By contrast, though traditional KEJ KZ 264 17 courses provide me with a lot of opportunity of interpersonal 2 1 2 3 4 584 18 interactions, the extra time and effort they require mean that it = additional 19 has higher cost. In summary, though both ways of education (3) S 20 aim to push knowledge level of younger generations to next fully=c 21 level, online learning seems to be attractive. satisfy = content = gratify 满意 ffortle e

第9題，為什麼不能選trails？

上传 Eitt (B) col (D) det Epit 2 B (A) glimpse ZP (B) latitude (C) segment (D parachute 6. The invention of the steam engine, which was used to power heavy machines, brought about a change in society. (A) persuasive ta en AktivB) harmonious (C) conventional (D) revolutionary 7. To encourage classroom the teacher divided the class into groups and asked them to solve a problem together with their partners. (A) operation (B) interaction (C) adjustment 8. Lisa onto the ground and injured her ankle while she was playing basketball yesterday. (A) buried (B) punched FJ (C) scattered (D) tumbled 9. Hundreds of residents received free testing from the city government to find out if their water contained any harmful chemicals. (C) zones (D) proofs (A) kits (B) trials - 3 - (D) explanation 19445 毀指 $t1 B

請問第九題為什麼不能選b呢 他不是 被動的嗎

undy mul sympionis. ror example, music therapy is often used in cancer treatment to help 8. pain, anxiety, and nausea caused by chemotherapy. Some believe music therapy may be a beneficial addition to the health care of children 9. cancer by promoting their social interaction and cooperation. In addition, there is evidence that music

怎麼解？

DraWw COIdenSed Structure 和 S for the compound (black 三 C, White 三 H, red =三 O, blue -N ii全謂 全 PROBLEM 15‧ Which of the atoms in the molecular model a。three lone pairs? b., two lone pairs? c, one lone pa sin Problem 14 have

請問第21題 我不懂他的中文翻譯是什麼 scheme在這裡應該翻譯成什麼會比較通順呢？

第3真 共7頁 第21至30 題為題組 由 fferent commu It The term m-learming, or le learming,”has differemt ae 同 紡 aa, ional technolog: 入人 moldingedeamingeedeatonaleehmolopy es 。22 Teontextse these handheld covers using a wide range of focusing on learning with mobile dbvices. Mobile learning is defined as 1ea # mal electronie deviees.” In other or id content interactions, using persoI mobile phones and tablets. through social computers learning anywhere and anytime. motebooks, C Also, m-learming aandheld computers, MP3 players, 24寢 2 9 and support am ss the _26 2 more oftware such as art 0f M-learming technologies include hi Mearming focuses on the mobility of the learmer and interacting with highlights the learning that reflects a focus on how society and its institutions can inereasingly mobile population. There is also a new direction in m-learning that give mobiJity and includes creation of learning material that mostly uses smartphone With special s' AHG Cloud Note. Using mobile tools for creating learming aides and materials becomes an important p: informal jearning at iis available from virtually anywhere- M-learning, like other forms M-learning is convenienti d share with others simultaneously using the same content. The 28V and tips arises as aresult. This highly active process has proven to increase of e-learing, can also reception of instant exam scores from the fiftieth to the seventieth percentile. The dropout rates in technical fields such as IT and Engineering 一29\ dramatieally by 22 percent Meaming also brings tremendous portability by epJacing books and notes with small random-access memories, filled_ with As contents. addition,itis simple to utilize mobile leaming fora more effective and entertaining experience. (ceolaborae 。(D) exeesses (Eportable。(F fee EE s (A) mobilize (B) instruetors (Dsehemes (0eaaored (mutple Dadeoli hine (G) accommodate。(H) precedent 說