近代物理求解：

Problem 28. Consider the process A* + A+), and A* is stationary (at rest). This is the process that an excited atom emits a photon and goes back to the ground state atom A. Assume that the excited atom has a rest mass M6. Show that v-mi (loro) hvo (4.3.14) = 1 2M where v is the photon frequency if the recoil is taken into account, and vo is the photon frequency if the recoil is not taken into account.

第三題為何是3啊⋯⋯ expansion那內能差不就是小於0嗎，

(3) Pushing the piston down so as to do work on the system 3 PV a (c)Multiple Choice: What is the correct result for reversible isobaric process in which an ideal gas undergoes an expansion form 1 L to 10 L in a closed system? BU-atw DHECPAT (3 points) Pv=nRT AU=croTo (1)w > 0, AU>0,q>0; (2)w >0, AU<0,q<0; (3)w<0,AU>0,q>0; (4)w <0, AU<0,q<0 个小 finat low of thermodynamics takes the

第一題 怎麼想

1.) True/false, multiple choice or short answer. “*” denotes more than one correct answers. (33 points) (a) Multiple Choice: I will have the largest energy transfer as expansion work from an ideal gas system 1o the surroundings if I use a process that is (3 points) (1) Isothermal and quick ;(2) adiabatic and quick ;( 3) isothermal and slow; (4) adiabatic and slow

求救第55題 完全看不懂他要我幹嘛

Year slenue Req) = 1932 1958 +1000 q R 9)=-1000q =74 1963 1968 COM If the price in dollars of a stereo system is given by 1000 p(q) + 1000, 1000 ² q where q represents the demand for the product, find the mar- ginal revenue when the demand is 10. 54. Profit Suppose that for the situation in Exercise 53 the cost in dollars of producing a stereo systems is given by C(q) = 0.2q2 + 69 + 50. Find the marginal profit when the demand is 10. 59. Marginal Product of Labor The output y of a manufacturing y process is a function of the size of the labor force n using the function 1990 +1000 1971 1974 = 990 197 197 19 19 1 y = kVn. The marginal product of labor, defined as dy/dn, measures the rate that output increases with the size of the labor force, and is a measure of labor productivity. (a) Show that (c) Using the a cubic f respond the rate and 200 (d) Discus descri part ( the y (e) Exp data calc ful x C(x) = 58. Money 1955-7 dy k dn an (b) How can you tell from your answer to part (a) that as the size of the labor force increases, the marginal product of labor gets smaller? This is a phenomenon known as the law of diminishing returns, discussed more in the next chapter. 56. Profit An analyst has found that a company's costs and rev- enues in dollars for a product are given by x2 C and R(x) 2x 2 5000' respectively, where x is the number of items produced. (a) Find the marginal cost function. (b) Find the marginal revenue function. (c) Using the fact that profit is the difference between revenue and costs, find the marginal profit function. (d) What value of x makes the marginal profit equal O? (e) Find the profit when the marginal profit is 0. (As we shall see in the next chapter, this process is used to find marimum profit.) A wher in bi find year (a) (C) (e) nad since

詢問成本與管理會計 第18題的題目是什麼意思 並且是怎麼算出來的

D. Materials, 40%; labor, 40%; overhead cost, 60%. E. Materials, 40%; labor, 40%; overhead cost, 100%. (18) Agora Company uses a process-cost system for its single product. Material A is added at the beginning of the process; in contrast, material B is added when the units are 75% complete. The firm's ending work-in-process inventory consists of 6,000 units that are 80% complete. Which of the following correctly expresses the equivalent units of production with respect to materials A and B in the ending work-in-process inventory? A. A, 4,800; B, 0. B. A, 4,800; B, 4,800. C. A, 6,000; B, 0. D. A, 6,000; B, 4,800. E. A, 6,000; B, 6,000. 19. Willingham uses a process-costing system for its single product, which is manufactured from Material X and Material Y. X and Y are introduced to the product as follows: Material X: Added at the beginning of manufacturing Material Y: Added at the 75% stage of completion

詢問成本與管理會計 第18題的題目是什麼意思 並且是怎麼算出來的

D. Materials, 40%; labor, 40%; overhead cost, 60%. E. Materials, 40%; labor, 40%; overhead cost, 100%. 18) Agora Company uses a process-cost system for its single product. Material A is added at the beginning of the process; in contrast, material B is added when the units are 75% complete. The firm's ending work-in-process inventory consists of 6,000 units that are 80% complete. Which of the following correctly expresses the equivalent units of production with respect to materials A and B in the ending work-in-process inventory? A. A, 4,800; B, 0. B. A, 4,800; B, 4,800. C. A, 6,000; B, 0. D. A, 6,000; B, 4,800. E. A, 6,000; B, 6,000. 19. Willingham uses a process-costing system for its single product, which is manufactured from Material X and Material Y. X and Y are introduced to the product as follows: Material X: Added at the beginning of manufacturing Material Y: Added at the 75% stage of completion

［計算機組織］ 請問這題的 b. 小題 不同的 processor 不是影響 CPI 的值嗎 為什麼可以拿 a. 算出來的 CPI 直接套在這題？

1.7 [15] Compilers can have a profound impact on the performance of an application. Assume that for a program, compiler A results in a dynamic instruction count of 1.0E9 and has an execution time of 1.1 s, while compiler B results in a dynamic instruction count of 1.2E9 and an execution time of 1.5 s. a. Find the average CPI for each program given that the processor has a clock cycle time of 1 ns. CPI = cycles per instruction 1.1 x 10 cycles for 1.0 x 10° instructions => CPL = 1.1 1.5 X 109 cycles for 1.2 x 109 instructions => CPI = 1.25 b. Assume the compiled programs run on two different processors. If the execution times on the two processors are the same, how much faster is the clock of the processor running compiler A's code versus the clock of the processor running compiler B's code? Execution time = CPI x IC x Cycle Time CPIA X ICA X CTP1 = CP1g x IC3 x CT22 CT P:/CTP2 = (CPIE x ICB)/(CPIA X ICA) = (1.25 X 1.2 x 10°)/(1.1. X 1.0 x 10°) = 1.36 Cycle time P1 = 1.36 x Cycle time P2 => P1 is 36% slower than P2

幫我看第三張圖的 三題練習題答案對嗎❓

44 How Do You Take Your Tea? 計等 Not counting water, tea is the most consumed drink) in the world. It makes sense if you 么理 think about it. The two countries with the largest populations, China and India, have strong 魯统 tea-drinking traditions. While the love of tea seems to be international, what differs is the 國際性 不同 manner in which people take their tea. 關製 Indians drink more tea per person than any other people on Earth. One popular way to drink tea there adds a long list of ingredients, making it something quite unique. The recipe 種類 includes tea, of course, plus milk, sugar, and a variety of spices including ginger, cloves*, 黑月紋 cardamom*, cinnamon*, and black pepper. After the ingredients are all boiled together, the 名为 liquid is poured, often from a great height into small glasses. 到来 高傲

請問39的D選項哪裡錯 在左附圖的文章中 最後一行最後一句有提到D選項 再請問hold back on在D選項是指堅持嗎 還是有其他意思 謝謝

合題答對者,得2分。 第36至39題為題組 & Thi race to 9-673 +3 Life is all about the choices we make, and they affect everything we do and feel. Kids reporter sad?” of the reseai offici New lack 4 || or SOT daydream about the coolest toys, and parents seek out the best schools for their children. Some people want the tastiest food, while others desire the biggest return on their investments Before we make any final decisions, we are given a lot of choices to sort through? Most of us feel that the more choices we have, the happier we'll be, as we'll be better able to determine which is best for us. At least, that's what we used to think. Research now shows us that there is such a thing as having too many choices, and it's actually making us miserable.' In fact, an excess of choices can lead to dissatisfaction, depression, anxiety, self-blame, and 'fegret. This is because it paralyzes us and forces us to make decisions that go against our best interest. What's more, it results in a huge waste of time. American psychologist Barry Schwartz lays this all out in his book, The Paradox of Choice. He sheds light on the process by which we become less satisfied, which is the cost of having too many options. First, once we've made our pick, we imagine how we could have done better. This then nags at us, making us regret our imperfect decision Soon, we convince ourselves that the discarded options or even imaginary alternatives would have been better than what we settled on, which causes expectations to rise. We're not completely satisfied with the outcome of our decision, even if it's a good one. In the end, we are no longer able to experience pleasant surprises. Fortunately, Schwartz says this can be turned around. But we must first embrace our limitations by 29 Yowering our expectations, being grateful for what we have, and not comparing ourselves to others, vic ti r t ~New 必勝卷第18回試題-4~

13.求解🙏🙏🙏

Na d. lowest freezing point: N2, CO, or CO2 102 +02 13. When 2.00 moles of SO2(g) reacts completely with 1.00 mole of O2(g) to form 2.00 moles of SO3(g) at 25°C and a constant pressure of 1.00 atm, 198 kJ of energy is released as heat. Calculate AH and AE for this process.com 14. Prediction of molecular structure PC1s. ce ce #batum 15. Calculate AH for the synthesis of diborane (B2H6) from its elements, according to the equation