求這兩題詳解～😢😢

- ons is nilot od plass lo gorol arai (s) 29vom Sion los = 9 ) A 170 kg crate hangs from the end of affope of length L = 12.0 m. You push 人 horizontally on the crate with a varying force É to move it distance d = 3.50 m to L the side (Fig. 7-20). (a) What is the mag- nitude of † when the crate is in this final position? During the crate's displace-lid 250 bisw ment, what are (b) the total work done 32 on it, (c) the work done by the grav- 16 Hoold itational force on the crate, and (d) the kd work done by the pull on the crate from the rope? (e) Knowing that the crate is Figure 7-20 Problem 9. motionless before and after its displace- ment, use the answers to (b), (c), and (d) to find the work force + does on the crate. (f) Why is the work of your force not . ( equal to the product of the horizontal displacement and the answer to (a)? - -- your

有人會寫嗎謝謝

3 : WNI (16-25 H 10 ) Lesson 3 89 10 20 What happened to him? Eric: Really? 17. he never came to any of our activities. How could he do that? Erie: Mike didn't come to my birthday party last weekend, and he missed the picnic yesterday, too. Ben: He is doing okay... In fact, I just saw him yesterday. 16. Ben: He was practicing basketball with his team on the basketball court. Eric: Oh, I know it! Ben: Well, basketball means a lot to him. Eric: I sometimes even get angry at him because he doesn't treat me as a true friend. Ben: But Mike finally 19. him. Eric: Yeah. You are right. I just miss the good old days when we played together and shared everything with 20、 Ben: I know, I miss the good old days, too. 18. his favorite thing in life. He is a really great player, and we should be Dangry 生氣的 should be ( ) 16. (A) When was that? (C) What was he doing then? ) 17. (A) After he joined the team (C) After you saw him ) 18. (A) looked for (B) was looking for ) 19. (A) happy of (B) proud of ) 20. (A) each other (B) every each (B) Did you see him in the park? (D) Who was with you then? (B) Before he started to play (D) Before we played together (C) was finding (D) found (C) happy on (D) proud on (C) others (D) each one 1~22 Hi Karen, I'm sorry about stopping you when you were studying for the English test yesterday afternoon. dn't mean to do that, and I'm really sorry. As you told me before, you always have a hard time remembering new words. So, I also want are some good ways with you. After I learn a new word in class, I don't spell it out again and ag remember it. First of all, I like to make small word cards. I write a new word on one side and th aning of it on the back side. Then I can study those words everywhere even when I just have a . For example, I enjoy reading through the cards when I am waiting for the school bus. I also arf the Internet to look for songs with the new words in it. Last week, we just learned the word ? And I found the song Treat Myself. It's an interesting and nice song. I often sing the song also learn other words from the song. hope these ways also work for you, and maybe we can study together next time. ☺ - remember 19 spell ## meaninge everywhere a bit 5

混合題第31題，它的題目什麼意思？ 求解🙇🙇，萬分感謝☺🙂

EL 35. 這位老師很生氣,Hugo 沒勞化 36. 雖然這塊牛排看起來像塊岩石 Dear Ms. Louise, Today was my precious little girl's first day in high school. She was thrilled that she would finally meet her new classmates. But when she woke up, she found that she had a big red pimple on her nose! She worried about it so much that she told me she didn't want to go to school. I knew that she felt embarrassed about having a big red zit on her face, especially when she was about to meet new friends and wanted to leave a good impression on them. However, as a mother, I just couldn't let her skip the first day of school. So, I made her go to school this morning. Did I do the right thing? Worried Mother Dear Worried Mother, I think you made the correct decision. Though her concern of making a bad impression on her new friends is understandable, she needs to learn that most people focus only on their own problems and don't even notice others'. Her friends would probably not notice her pimple at all. I think she will gradually figure this out. Don't worry. Talk to her as usual. She must have plenty of exciting stories about her new friends to share with you tonight. Ms. Louise ) 29. What does Ms. Louise do? (3%) A (A) She is a column writer who gives advice and suggestions. (B) She is a school nurse who helps keep children healthy. (C) She is a company manager who is in charge of a large group of workers, (D) She is a family doctor who takes care of people and treats their diseases. (B) 30. How would you describe Worried Mother and Ms. Louise? (4%) (A) Angry; calm (B) Guilty; comforting. (C) Embarrassed; proud. (D) Understanding; confused. 31. In Ms. Louise's reply, the word others' refer to others' (4%)

求解10xBSA怎麼解？

Exercise 1 • A5 kb plasmid DNA has two Bam HI sites. You would like to use this enzyme to digest 5ug of this DNA. How would you do? (DNA concentration: 2 mg/ml) Bam HI concentration: 20000 U/ml Unit definition of Bam HI: 1 unit enzyme can completely digest 1 ug of lambda DNA at 37 °C in 1 hour. (lambda DNA has 48500 bp and 5 Bam HI sites) The reaction needs supplement with 100 ug/ml bovine serum albumin (BSA, 10x concentration) • Calculate the volume of all ingredients and setup the reaction table.

真的超不懂 有沒有厲害的人可以解答 不好意思 感謝

Xo=0 X 3-8 Solving Problems involving Projectile Motion Example 3-10: Level horizontal range. (a) Derive a formula for the y = 0 again here horizontal range R of a projectile in yo = 0 (where x =R) terms of its initial speed v, and angle ©. The horizontal range is defined as the horizontal distance the projectile travels before returning to its original height (which is typically the ground); that is, y(final) = yo. (b) Suppose one of Napoleon's cannons had a muzzle speed, vo, of 60.0 m/s. At what angle should it have been aimed (ignore air resistance) to strike a target 320 m away? R 60° 30° 35 en )

請問文法哪裡有錯誤？🙇‍♀️🙏 On the phone，Dennis invited Mindy and went with him and watched about the puppy movies. They arrived the  movie theater a... 繼續閱讀

第二部份:段落寫作 L L 題目:丹尼斯打電話約敏蒂去看一部有關小狗的電影。他們在電影院面後就去買票。這部電影 很好看,以致於敏蒂也想養狗。為了討她開心,丹尼斯就到寵物店幫她買了一隻小狗。請 依照下面的圖片,寫一篇約50字的故事。注意:未依提示作答者,將予扣分。 Dennis Mindy Walaust Sur Ticket booth 171 30-21 reinit niso hogan | Foton || pet shop Befood

12選什麼，能告訴我為什麼嗎

A can enjoy a lot of water sports. (A) beaches C mountains (B) factories (D stations two weeks, his first child 380 12 Joseph is busy learning to be a father. In will finally be born. (B) other C) another D) others A ones A fall C) feel the house shaking when I was in the bathroom. A B C 0 13. Tina: I Nora: Let's get on the Internet and check what happened. (B) felt (D) fell >

12選什麼，能告訴我為什麼嗎

A can enjoy a lot of water sports. (A) beaches C mountains (B) factories (D stations two weeks, his first child 380 12 Joseph is busy learning to be a father. In will finally be born. (B) other C) another D) others A ones A fall C) feel the house shaking when I was in the bathroom. A B C 0 13. Tina: I Nora: Let's get on the Internet and check what happened. (B) felt (D) fell >

請問有人知道這兩題的算法與答案嗎(´･ω･`)

運動與 力學 Problem6(填充題) A steel ball of mass mi = 80 g has an initial temperature Ti = 200 °C. It is immersed in m2 = 250 g of water in a copper cup of mass m3 = 100 g. The initial temperature of the water and cup is T2 = 20 °C Find the final temperature when the system reaches thermal equilibrium. (01小題) . ) SPECIFIC HEATS (20 °C AND 1 ATM) c (J/kg.K) 力學定律(25) 变(9) 與熱容量(24) P-LOS 想氣體與功(2 體運動論與內 TP-L06 NP-003 Aluminum Copper Gold Steel/Iron Lead Mercury Water Ice (-10 °C) C CJ/mol-K) 24.3 24.4 25.6 25.0 26.8 28.0 75.4 38 900 385 130 450 130 140 4190 2100 6.波動與光 7 近代物理 8.近代科技1 The final temperature= 分數= 3 可嘗試次數= 5 ° °C 相對誤差=0.05 目前剩餘2次,可繼續嘗試 9.近代科技2 : :29 10 近代科技3 量子電腦 这三 重設 X 三 VPYTHON 下午08 星期日 2021/6/13 https://physexp thu edu tw/AP/C/NP/NP-003/NP-003-T-06 php

求解第四第五題!!!電機的 謝謝😭🥺🥺🥺 拜託看到盡快><

2. The circuit in Fig. 2 represents an energy storage bank with vi(0)=-3 V, v2(0) = 5 V, v3(0)=-5 V. (a) If the switch Si is closed at tı > 0, find the values of vi, v2, and v3 after ti. (b) Following (a), if the switch S2 is closed at 12 >ti. Find the final values of vi, vz, and va after 12. 3. Let iz(0) = 0. Find the current il(t) of the circuit shown in Fig. 3 for t> 0. 22 w 22 32 1 ] 322 + 8t u(t) A 22 2H 1:6 8u(1) V 台Fv() 3i Fig. 3 Fig. 4 4. Let vo(0-) = 0. Find the voltage ve() and current i(1) denoted in Fig. 4 for t> 0. 5. The switch shown in Fig. 5 is closed for a long time before t = 0. When the switch is open at t = 0, find i(t) for t < 0 and > 0. i=0 =0 212 622 W + 392 8 V 0.510) 2=vd) - Fig. 5 FE final Sophie de EES-B22.pdf 20210611_115335.jpg 20210611_115320.jpg 18.pdf