求解答案是否正確

Multiple-choice questions: (70 points) write the letter of statement that is not true: 1. A.B.U The Drude Model: (a) It is a classical approach using concepts from the kinetic theory of gases. (b) A relaxation-time approximation is used where the probability of collision is l/t. (c) No forces act on the electrons in between collisions. (d) It predicts accurately the electronic heat capacity of metals. 2. The Sommerfeld Model: (a) The crystal potential is replaced by an average Coulomb potential. (b) The separation of states is so close that a continuum model can be applied. (c) The electrons are highly localized due to a strong crystal potential. (Q) The energy of the highest occupied state at 0 K is the Fermi energy. 3. Density of states in k-space, N(k): (a) N(k) is determined by the boundary value conditions. (b) For lattices in any dimensions, N(k) is constant in k-space. (C) N(k) depends on the direction and magnitude of k. (d) It is directly proportional to the volume of the crystal. E影響, c 4. The Fermi surface of a metal: (a) is responsible for many of the transport properties of the metal, (b) depends on the nature of the chemical bonds, (c) is always a sphere, (d) can involve mixing of electron orbitals. ✓ 5. The conductivity of a material () increases with the mobility of its carriers, (b) increases with the density of carriers, (C) it is inversely proportional to the energy gap. cogu changes with temperature. 6. BID Plasmons: (a) They are an important characteristic of the Sommerfeld electron gas model. (b) Plasmons occur spontaneously in metals. (c) They are related to charge density oscillations. (d) The Plasmon energy is typically of the order of 10 eV. The Fermi energy Ef in intrinsic semiconductors 8) is usually close to y E, at OK (b) it ACiD. can increase or decrease with temperature depending on the ratio of hole and electron effective masses, (c) it represents the point at which the probability of occupation is 12, even though there may not been any states with that energy, (d) its value relative to the electronic bands must remain unaffected in the presence of defects or interfaces.

這2種文法的句構要怎麼分辨？在什麼時候該用哪種文法？💦

all over the world. English is spoken The letters in Chinese. aren't written The computer WOS used by my brother. The cookies weren't made by me. The girl kissed the cat. 主 I was kissed. 被 The cat was kissed by the girl. Look and Wrie 看圖完成句子。

求解

3) 下列哪一種狀況不屬於牛頓第一運動定律所描述的理助人 (A靜止在桌面上的蘋果 (B從空中自由落下的棒球 (C)等速度行駛的汽車 D靜 止在天花板下的吊燈。 ()61.2公斤重的水平拉力,可使質量 0.4公斤的木塊在一水平粗糙地面上作1公尺 /秒的等速度運動,則木塊與地面間的摩擦力大小為多少公斤重? #lannt: F=ma EEVOS SUSCI

有人知道這怎麼算嗎 ？ 畫黑線的那裡 （Cos25度）

The solution requires that we determine the component of the f because the component of the force that was pushing down on Fparallel (Force) (cos 25°) = (125 N)(0.906) = 113 N W = Fparalleld = (113 N)(56 m) = 630 J Getting a piano into a truck isn't easy, so we often use a ramp to the distance we have to apply the force is greater. So in a way, work done remains the same. Play around with the Ramp and Pi

我不太會算.. 可以幫幫我嗎 感謝感謝🙏🙏 #物理

9/28課堂練習 (1)將4.2×10 m/s除以0.57 ms,並以m/s2為單位表示 (2)把3.63105 m和2.13103 km相加 (3)下列數值(a)以科學符號(scientific notation)表示 (b)有效數字(significant figure)的數 0.0008, 3.14 x 107, 2.998 x 10-9, 550 x 106, 0.014 x 109

為什麼11題made後面是接replied而不是reply？😭😭😭

effect 2. Alcohol has a bad e hat is why drunk driving is promise forbidden 3. Before I tell you what really happened, you mus anyone else. 4. It was all your fault, so you have to take fullr 5. The witness told the police he had heard an a et to tell responsibility argument y. t between the couple that night. 6. This scientific paper shows the closer relationship P between PM2.5 and lung disease. stressful 7. The students were about to take a math exam, which was s 1 for everyone. h. breath 8. Emilia ran four hundred meters and was out of b emotional 9. High school students are often upset by e 1 problems. destroyed 10 The bridge was almost d yed in the earthquake. 蒂娜在網路上製作一支影片,感謝醫師和護士在她發生意外後給予的照顧。 Tina made an online video in appreciation of the doctors and nurses who took care of her after the accident. replied to 12 大家都知道空污的可怕,但似乎沒有解決之道。 . expert at/in We know air pollution is terrible, but there seems to be no solution ta it. 1. 新建的博物館有很多很棒的藝術品,所以一定值得參觀。 There is so much great art in the new museum, so it is surely_worth visiting T Idioms & Phrases 1. pick on 找碴,指責 RBA pick on + sb. Jane felt the manager was picking on her and decided to quit her job. 珍覺得經理在找她麻煩,於是她決定辭職。

想問 6、9謝謝

In 9. example, the New York Sun published a strange article on August 21, 1835. article This tricked readers 7. believing that life had been discovered on the moon! The was supposedly written by well-known astronomer* Sir John Herschel was not true. To try and make it more convincing, it also contained great "scientific detail, how Herschel had used a device called a "hydro-oxygen magnifier" to make the discoveries. The next month, the newspaper quietly announced that the article was fake and had merely been an 10. to get more subscribers. These are just a couple of examples proving that fake news is nothing new. 主:Rip 三時期 astronomer 天文學家 1.(A) in order that (B) for fear that (C) as long as (D) unless 2. (A) against (B) through (C) about (D) in 3.(A) cite (B) overtake (C) deceive (D) confront D 4. (A) appealed to (B) relied on (C) came across (D) stirred up 5.(A) In the face of (B) Focusing on (C) Exposed to (D) Prior to (D) 6.(A) the other (B) the rest (C) another B 7.(A) to (C) from CA 8.(A) which (C) it (D) what A 9.(A) mentioned (B) to mention (C) mentioning (D) mentions 10.(A) outlet (B) appointment (C) encounter (D) attempt (D) other (D) for (B) into (B) that

求解31題 謝謝🥺

USC c) in (C) at first terminal (D) illness (E) frailer (H) difference (I) from (J) confined The doctors had some bad news for Jo Bloomer. Her second child, Lola, had a very rare 21. condition known as A-T. 22. she couldn't accept the fact that her family was so unlucky. A-T is so uncommon that, at the time, only sixty children in the UK suffered 23. it. Three-year-old Lola's condition meant she would gradually grow 24. She would then start to develop more and more disabilities*. Most A-T sufferers are 25. to a wheelchair by the age of ten. Eventually, she would die from this strange 26. __, probably in her early twenties. Luckily for Lola, her mother 27. to simply sit around and wait for her daughter to grow weaker and then die. Life, 28. was just too precious. Instead, she wanted to do something special for her. She wanted to make a significant 29. in her life. All this led Jo to make a promise. Holding her daughter 30. her arms, she vowed* to take her to each of the Seven Wonders of the World before she died. She was going to help little Lola live her short life to the full! 註:disability 缺陷;障礙 Vow 立誓 U I 21. 22. J . 23. 24. 25. 26. 27. 28. 29. 30. . I GE EG IV. 閱讀測驗:9% The movie Patch Adams was released in 1998. Based on the life of Dr. Hunter "Patch” Adams, it tells the story of a man who firmly believes laughter to be the best medicine. The famous comic actor Robin Williams plays the lead role. His wonderful portrayal of the doctor's quest* to relieve as much suffering as possible led the film to be nominated* for several awards.

這三題錯的原因是什麼？ 應該怎麼改才對？ 求幫🙏謝謝！

2. B. Common people only care about their own futures. However, steat people think about ) ) (C 3. (B) I have studied (B) for six hours. Now I am going to have lunch. (A) during (C) since (D) within y voss to tell him I would be late for work that day, he asked if were was (A) wrong anything (B) wrongly anything (C) anything wrong (D) anything wrongly 6. COB I do not remember any customer ever about our service. (A) complain (B) complaining (C) complained (D) to complain 7. (c) Taking an 9. the most handsome man in ) We all think of our Earth Science teacher the whole school. (A) as (B) for (C) to (D) with 10. CD Do not bother Martin. He be busy with his work at the moment. (A) A must (B) has to (C) used to (D) would rather.

求解45題 為什麼是b

Pet Insurance 10 Pet Shop FOOD & MEDICINE 43 - 46 題為題組 killed intentionally or unintentionally- C2 As humans make the wildlife habitats less and less remote, the chances of wildlife being are growing higher and higher. Among the causes of their unexpected deaths, roadkill ranks at the top. In Taiwan, the revealed statistics are rather shocking. According to a five-year survey by the Taiwan Roadkill Observation Network (TaiRoN), approximately five million animals become roadkill each year, involving 550 different species. Between 2012 and 2017, it was found that 54 leopard cats, 257 palm civets, and thousands of cats, dogs, and reptiles perished under the rolling wheels of the motor vehicles. TaiRON originated from a Facebook group created by concerned citizens in August, 2011. The group members come from a variety of locations and academic backgrounds rather than from any particular group or association. It is not an intentionally planned, research-oriented citizen science project. Rather, it is gradually established through discussions and consensus among members. There are four tenets guiding this organization: roadkill mitigation, citizen science, environmental education and life cherish. To encourage people’s participation in the program, TaiRON specifies four easy steps as follows: 1 Turn on GPS on your phone and take sharp photos when you encounter dead (wild) animals in the field. boll N ebonobo 、 20 Upload the photos and information (dates, latitude and longitude etc.) to the database and Facebook by APP. 100 robilo 3 Collect the complete carcass carefully with 2 layer zipper bag, label with information, and then put it into solid cardboard boxes or Styrofoam. 4 Use 7-ELEVEN “Frozen Shipping, Home-Delivery" and "C.O.D. (Cash on Delivery)" to send the package to Endemic Species Research Institute. One animal of TaiRON’s survey is the leopard cat. As Taiwan's only surviving wild cat, this feline species faces death threats from habitat loss, pesticides and car traffic, the last of which is the most serious one. Leopard cats are often found struck and dead on the roadside. By publishing roadkill statistics on leopard cats, TaiRON has championed the protection of this endangered species. Due to their unyielding efforts, there has been a significant drop in leopard cat deaths. toitained and odd or how Torloni 第四回 g 41