我想詢問第39題 謝謝

每個積分 是以逆時針方向繞路徑。說 明答案的原因。 A DA 23.14 節 應用安培定律 並 第 或 -8 到 頭 的 E23.36 23.37。同軸電纜。半徑a的 實心導線透過內徑b和外徑 c傳導管軸上的隔離圓盤支 撐(圖 E23.37 )。這個中心 導線和管承載大小相等、方 向相反的電流I。電流均勻 分布在每個導線上的橫截 圖 E23.37 面。推導下列各處的磁場大小表示式:(a) 在中央實心 導線外部但是在管內部的點(a<r<b);(b) 在管外部的 點(r>c)。 23.38。重複習題 23.37 的問題,此時中央實心導線中的 電流是I,管中的電流是 I,並且這些電流朝著相同的 方向,而不是在相反的方向。 23:39 一螺線管內徑 12.0 cm 和外徑 15.0 cm。它攜帶 ● 1.50 A 的電流。必須有多少圈同樣間距的線圈,才能使 得它在這個線圈距離中心 14.0 cm 以內的點產生 3.75 mT 的磁場? ● 23.40 麻省理工學院弗朗西斯必特國家磁性實驗室已經 做出 37.2 T 的磁場。求出磁場在下列各處所需要的電 流:(a) 離長直導線 2.20 cm;(b) 在 100 圈、半徑 44.0 cm 的圓形線圈中心;(c) 在半徑 2.60 cm、長度 34.0 cm 和 40,000 圈的螺線管中心。

(請忽略右下角107題的算式) 請問我是哪裡算錯了呢? (標準答案0.89 我的~0.70）

Ans: D Category: Difficult Section: 16.5 hoo . 106. What is the pH of a solution prepared by mixing 50.0 mL of 0.300 M HCl with 450.0 mL) of 0.400 M HIO3? [K (HIO3) = 1.6 x 10-1 k= [CcHsCod ][CH3 C00H] A) 1.52 B) 0.80 C) 0.72 D) 0.89 E) 0.66 = 2.b [CH3C00-][ C6H-C001] Ans: D Category: Difficult Section: 16.5 CH₃COOH + H₂C00 (o

請問第44題要怎麼寫? 第二張圖是我的寫法，因為cu->cu2+發生氧化反應，所以另一個的氧化E°必須小於cu的,這樣cu才能發生氧化，請問這種想法是錯的嗎?? :(

44. Which one of the following reagents is capable of transforming Cu(s) to Cuf* (1 M)? A) I (1M) B) Ni(s) C) Ag" (1 M) D) AP* (1 M) E) Hf (1 M) Ans: C Category: Medium Section: 19.3 45. Which one of the following reagents is capable of transforming Fe3+ (1 M) to Fe2+ (1 M)?

《普通化學》第九題跟第十題，感恩。

Alinie 2 PBurel H12 lapf Setul lagly x2 e determined by titfátinga 100 sample of KCror. Nos cag & beth 14 raqla 1: 191 +24100) No. (aq) + 2 Al Al EX Mn of laql4 2 1 7 Mn Oz (s) + Al(Orta 9. The blood alcohol (C2H5OH) level can be potassium dichromate solution, resulting in the production of Cr3+ (aq) and carbon dioxide. The reaction can of blood plasma with an acidic be monitored because the dichromate ion. (Cr20,?) is orange in solution, and the Cr" ion is green. The unbalanced redox equation is C₂H5OH(aq) + 3H₃0 (aq) + 2 CO2 (g) +12Hg) Me Cr2O,?- (aq) + CHșOH (aq) --Cr"(aq) + CO2(8) 14 Heag toe Cruon Lafla203149) If 31.05 mL of 0,0600_M potassium dichromate solution is required to titrate 30.0 g of blood plasma, Hamm Fapter (aq) determine the mass percent of alcohol in the blood. 0.143% Ca H5OH. 2- tize 32.0 g 10. An average human being has about 5.0 L of blood in his or her body. If an average person were to eat ht of sugar (sucrose, C12H22011, 342.30 g/mol), and all that sugar were dissolved into the bloodstream, how would the molarity of the blood sugar change? HO +1 HO +1 H &H to H - 31 OH HO HIP 126 0 HO +1 + 5e OH OH OH (+36 ) x2 t6 Cr2O7 - 20+ 3+

求解 為什麼動量不需要代速度值？🤔

6.51 Using Heisenberg's uncertainty principle, calculate the uncer- tainty in the position of (a) a 1.50-mg mosquito moving at a speed of 1.40 m/s if the speed is known to within £0.01 m/s; (b) a proton moving at a speed of (5.00 + 0.01) X 104 m/s. (The mass of a proton is given in the table of fundamental constants in the inside cover of the text.) (a) Ax >= h bar /24p = 6.626*10-34/(1.5*10-6*0.01)/41 = 4/41*10-27 m (b) Ax >= h bar/24p = 6.626*10-34/(1.67*10-27*0.01)/41 = 3/41*10-10 m *

水文學——降水與損失 如圖，請問有人知道這兩題該怎麼算嗎？ 翻遍教科書教過的內容根本沒想法⋯

> 0 2-14 有一矩形集水區,其四個角落的座標分別為(0,0),(0,10), (14,10) 和 (14,0)。集水區內設有四個雨雨量測站,各測站所在位置的座標及降雨量如下 表。所有座標值的單位均為公里。試以徐昇氏法推算此集水區的平均降雨量 及逕流總體積(註:假設無任何降雨損失) o 雨量站位更 (4,2) (4,7) (11 , 7) | (11,2) 降雨量(cm) 1.5 2.0 2.4 4.3 ( 86 水利工程簡任升等)

光學第3題（2.38）請問如何解選項c🙏

3.00 85 09:49 ul. RES Optics Homework 1...748220677e2a.pdf ka KI : 。 Optics Homework 1 1. 2.2* Show that the function $(y, t) = (y – 40) is a solution of the differential wave equation. In what direction does it travel? 2. 2.6 How many wavelengths of a green laser (1 = 532 nm) can fit into a distance equal to the thickness of a human hair (100 um)? How far will the same number of waves extend if they originate from a micro- wave oven (v = 2.45 GHz)? 3. 2.38 Which of the following expressions correspond to traveling waves? For each of those, what is the speed of the wave? The quanti- ties a, b, and c are positive constants. (a) (z, t) = (az – bt)? (b) y(x, t) = (ax + bt + c)2 (c) 4(x, t) = 1/(ar? + b) 4. 2.43 Write an expression for the wave shown in Fig. P.2.43. Find its wavelength, velocity, frequency, and period, Figure P.2.43 A harmonic wave. I=0 40 100 300 500 -20 401 -60 0.66 X 10-15 (nm) 100 300 500 I = 1.33 X 10-15 (nm) o 二

求解

Using Heisenberg's uncertainty principle, calculate the uncer- tainty in the position of (a) a 1.50-mg mosquito moving at a speed of 1.40 m/s if the speed is known to within +0.01 m/s; (b) a proton moving at a speed of (5.00 + 0.01) x 104 m/s. (The mass of a proton is given in the table of fundamental constants in the inside cover of the text.)

第一題：有人能教我，這個電子填的順序要怎麼做？我的想法是同個方向的先填，再填反方向的，然後補滿嗎？ 第二題：請問遇到像紅色圈起來的滿的電子該怎麼做？是一整個填進中間空的圈圈嗎？ಠ~ಠ

N2 Atom Molecule Atom 2p 2p Energy TT 2p 2s 2s

求算法

CD 0 2. - 女用 has p5 Ca,样品。第去耳其东化 p出Ai质,取 2.8 m+牛的博 BOTTE, 4 x 2 = 7 13 2 1 12 m& INHCl, 1 t = 70 22 X 1 NHCl 2 2 2 450 ml 2# - 5, [123 + 1 = 72 = 3 m 2 , too 13 ml in HCl 477 $1 to 2 0.5 ml Et tě 60 70 22 76 0.5ml 17 18 %0 (10-100 ppm (a) ux AAST IT CA 5 2 1 5 EUR 7 2 7 7 6 28.2 ppm Ca , & 10) * 3 2 2 4 4 43 ob ca 5 2 2 x ppm & & TE?