答案如圖

9.47 A frictionless pulley has the shape of a uniform solid disk of mass 2.90 kg and radius 10.0 cm. A 1.60 kg stone is attached to a very light wire that is wrapped around the rim of the pulley (Fig. E9.47), and the system is released from rest. (a) How far must the stone fall so that the pulley has 3.30 J of kinetic energy? (b) What percent of the total kinetic energy does the pulley have? 01442m 47.6% Figure E9.47 T M mg 10 A 116 1.50 kg stone 2.9 2.50 kg pulley

答案都是8.79

9.21 A wheel of diameter 20.0 cm starts from rest and rotates with a constant angular acceleration of 3.50 rad/s². Compute the radial acceleration of a point on the rim for the instant the wheel completes its second revolution from the relationship (a) arad w'r and (b) arad = v²/r. =

請問這一題要怎麼寫？先謝謝點進來的人❤️‍🔥🙏🙏🙏

20. BIO A setup similar to the one shown in Figure P4.20 is often used in hospitals to support and apply a horizontal traction force to an injured leg. (a) Determine the force of tension in the rope supporting the leg. (b) What is the traction force exerted to the right on the leg? 70° 8.00 kg Figure P4.20

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+

請問Mass光譜切割到最後 剩下的基團怎麼寫？ 切下乙烯、C=O後 剩下的基團要怎麼標示？ 分子量剩下55，是C3H5N 這是什麼基團或是結構嗎？

Relative Intensity 100 80 40 MS2008-03710CW 0 mm 83 20間距相差55m/Hz,可知可能為 111m/z出現訊號,可推 測分子量可能為111 111 間距相差28m/Hz,可知可能為-CH=CH(乙烯基) 55間距相差28m/Hz,可知可能為C-0 50 v/tbn/pyntyy.................... 100 150 m/z 200 250 28 28 55 NH2

第15題，求計算過程 該怎麼做

15. 在沉澱反應中,須若干克的 AgNO3 方可製備 500 毫升,0.1N 的溶液? 答 18.5g 16. 在還原反應中,制供(25N的次次1 the E-O 180 ~

化工熱力學題目 求解

由 Redich / Kwong 狀態方程式計算下列的飽和液體莫耳體 積與飽和蒸汽莫耳體積。並與適當的一般化關聯 式 計算結果相比較。 (0) 40°C时的丙烷,其P&t=13.71 boar (E) 100°C時的正丁烷,其pt:15. 41 bar (i) 90°C時的異丁烷,其P=16.54 bar sat (m) 60°C時的氨共pa 18.21 bar 二

請問yc跟M代表什麼

校正曲線結果標準差. Sc= 3v m |成.. + M (40 - 4² 2 msxx

題目看不懂問什麼及請問答案

2. Draw an alkane with the molecular formula C5H₁0 for each of the following criteria: (a) could exist in either cis or trans isomers, (b) could not exist in either cis or trans isomers (c) contains only secondary carbons.

想請問如何判斷偶極矩大小

燃燒熱較小: trans-decalin 何者可以 flip: cis-decalin 偶極矩 8 下列化合物中,被標註之原子的鍵長,假設是一樣長請排列它們的 dipole moment 大 小順序(由大到小)並給予合理的解釋 (10 points) HC=C—CH3 9 10 9 猜謎 - (5 points) H2C=CH-C=CH 7 8 5 H₂C=C-C1 C9-C10 > C7-C8 > C5-C6 H6