想請問這題是如何解出來的？ 手寫的圖是我嘗試解的過程，但沒有解出答案，麻煩大家了🫠

21. A metal ion in a weak-field octahedral complex has two more unpaired electrons than the same ion does in a strong-field octahedral complex. Which of the following could the metal ion be? (A) Cr³+ (B)Mn²+ (C)Co²+ (D)Ti²+ (E)Cu²+

這幾題有人會嗎？

8. (14 points) Write down the Slater determinants (or linear combination of Slater determinants) for (a) (8 points) the He atom at the lowest excited state in accord with Hund's rule with Ms = 0. (b) (6 points) the Li atom in its ground state with Ms = -1/2. 9. (24 points) For a two electron system, (a) give all the electronic spin functions for the triplet state and the singlet state; and (b) draw plots to show the orientations and the magnitude of the spin vector S1, S2, and S (S = S1+S2) for both spin states of S= 1, Ms = 0 and S = 0, Ms = 0. 10. (12 points) For a hydrogen-like atom, give the results for the following operation on the spin-orbital function: (a) L²(3d¹ß); (b) Lz(2p₂a); (c) S²(2sa); (d) $₂(3poß)

想請問這題🙏，有點看不懂圖三的公式是從何而來，卡住了

EXAMPLE 21.11 FIELD OF A UNIFORMLY CHARGED DISK A nonconducting disk of radius R has a uniform positive surface charge density o. Find the electric field at a point along the axis of the disk a distance x from its center. Assume that x is positive. SOLUTION IDENTIFY and SET UP: Figure 21.25 shows the situation. We rep- resent the charge distribution as a collection of concentric rings of charge dQ. In Example 21.9 we obtained Eq. (21.8) for the field on the axis of a single uniformly charged ring, so all we need do here is integrate the contributions of our rings. EXECUTE: A typical ring has charge dQ, inner radius r, and outer radius r + dr. Its area is approximately equal to its width dr times its circumference 2πr, or dA = 2πr dr. The charge per unit area is σ = dQ/dA, so the charge of the ring is do = o da = 2πor dr. We use dQ in place of Q in Eq. (21.8), the expression for the field due to a ring that we found in Example 21.9, and replace the ring 21.25 Our sketch for this problem. Idr dQ X P dEx dEx radius a with r. Then the field component dEx at point P due to this ring is 1 2πσrx dr 4π€0 (x² + ²)3/2 SOLUTION Continued

為什麼速度不變動能還是減少了，謝謝！

A jet airplane begins a trip at an altitude of 9000 m, traveling 200 m/s. One hour later in the flight, it travels at the same speed, but at an altitude of 4500 m. How was its kinetic energy changed? ©Cengage a. It was reduced to half. b. It was doubled. C. It was not changed. d. It would be slightly less. Slide 8-4

大學普化 方智化學第六題

ow Na k 7 CI o se Br Chapter 2 化學鍵結 AH -C=CH 升二技插大 3. Brigma The bond between the carbon atoms in acetylene (HCCH) consists of ) (A)6 pi electrons (B)4 pi and 2 sigma electrons (C)6 sigma electrons (D)2 pi and 4 sigma electrons (E)3 pi and 3 sigma B) B 7.(BCDE) electrons. 【84 成大化學) 14.(B) 20.(C) 4. E ) (A)NO; [83 中興A] Which of the following has a triple bond? (B)O2 (C)C12 (D)CO; (E)CN-. Which one of the following element pairs has the lowest electronegativity (B) 27.(D) 34. (C) C) 41.(CD) 1 G difference and thereby is the least polan? Få 10 323.49 B) (84 5% *ILI) -) 48. (A) 6. NET 2 > 2 D) 58. (D) 62. (B) 69. NO+ D Obind (219) O 发 (A)SeF (B)Seci (QKBr (D/NaCl (E)KAT. 11 The compound Sio does not exist as a discrete molecule while CO2 does. This can be explained because ly 2 ep 3 15 aly zp (A)the Si–O bond is unstable (B)The Lewis structure of SiO has an even number of electrons (C)The SiO2 is a solid while CO, is a gas (D)the 3p orbital of the Si has little overlap with the 2p of the 0 (E)none of the these. V MOJT 515 1 - 4 40 (成大】 Yi (4 0 atom) (86 58*A] 7. In order to explain the valence observed for many of the elements 0 -Si-O in terms of electron configurations, it is often useful to look at electronis staies slightly different from the ground state in comparing 0-41-0 the ground state of boron with the state more useful to describe 0 bonding, the number of unpaired electrons goes from (A)1 to 2 (B)1 to 3 (C)3 to 4 (D)3 to 5 (E)none of the above. (集 (80 清大B) Which of the following compounds should not exist? ( (, 【85 成大A】 alf 566-32 Cle 32-8-24 2-89 cild 14 1 he atoms 83 中興A) mm bove. B 29 p. 1 1 be a ) \CHE > ? (A)Na,P (B)(NH4),PO, CIPO. DPH xH)POCI,, Maspal sput 中興A] Pa zorgt O 15412 = 1) O-P- 5 5+12= 1) 10-4 - 13 13-12=1 -- cl-P-0

求詳細過程~感謝🙏

A disk of radius 4 cm has a uniform charge density 5 uC/m². What is the field strength at a point along its central axis at a distance 10 cm from the center? a

求詳解謝謝各位🙏

28. Which one of the following will have the greatest number of unpaired electrons ? A. B. C. [Mn(H2O).]2+ (weak field) [Fe(en)3]3+ (strong field) [Ru(NH3).]?* (strong field) (Cr(CI).]*- (weak field) [Fe(en)3]** (strong field) D. E.

請問第七題怎麼解

60 s, turn 90 20 km/h for 2.0 min, turn 90° to the point, (a) how far are you from your starting point, and what direction relative to your initial direction of travel are you? V During volcanic eruptions, chunks of solid rock can be blasted out of the volcano; these projectiles are called volcanic bombs. Figure 4-22 shows a cross section of Mt. Fuji, in Japan. (a) At what initial speed would a bomb have to be ejected, at angle 0o = 60.0° to the horizontal, from the vent at A in order to fall at the foot of the volcano at B, at vertical distance h = 2.60 km and horizontal distance d = 9.40 km? Ignore, for the moment, the effects of air on the bomb's travel. (b) What would be the time of flight? (c) Would the effect of the air increase or decrease your answer in (a)?onatlar slow orl w moito Movisio Olovo vibolov te tootsodio dos olvistatani se moltotib nur no vodo as vd botu 29 vd baidot otsi Nomstl moll bottom 12 A plane flies 5 then 1100 km sout) trip, what are the displacement, the velocity, and (e) is 13 An astronau of 4.5 m. (a) Wha eration has a ma minute are requ period of the m 14 A basebal mum height al after reaching that is 86.0 m (a) What may ball? (b) How the ball strike blitt 00 Troede Vibolov sister sam 12 d B 15 The ran also on the place to plac broad jump (where g= by how mu instead in 1 Figure 4-22 Problem 7. 8 Oasis A is 90 km due west of oasis B. A desert camel leaves A and takes 55 h to walk 75 km at 37° north of due east. Next it takes 45 h to walk 65 km due south. Then it rests for 5.0 h. What are the (G) magnitu Cia

請問第4題要怎麼算?

人 時 人 (”) 4. Asquare coil of side 8 cm has 180 turns and rotates in a uniform field of magnitude 0.08 T 了fthe peak emfis 12 V what is the angular velocity of the coil? (A) 100 rod/s 。(B) 110 rqd/s (c) 120 rod/s (D) 130 yad/s (”) 5. A parallel plate capacitor has circular plates of radius 2 cm separated by 3 mm. 耳 the potential difference between the plates changes at 5x 10+ V/s, what is the

請問這磁力的方向是往哪 要依據哪一個電流方向判斷

Figure shows a wooden cylinder With a mass 皮 of 0.25 kg and alength of0.10 m with 和equal fo_tn_turns of _wire。_wrapped around 和 全 so 了at the plane of the wire loop contains 也c ax1s of the cylinder. What is the least 崗 cylinder from the rolling down an inclined plane whose surface is inclined at an angle 9 to the horizontal, in the presence of a vertical, uniform magnetic field of 0.50 T, 放the plane of the windings is parallel to fhe incline. 【沉莫】 訕 prevent_the 4 計 AnSs : 2.45 A。 sojl : 由7 =五x豬得 : se,92