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$2C + O_2 \rightarrow 2CO$ $Fe_2O_3 + 3CO \rightarrow 2Fe + 3CO_2$

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A solid that forms in a reaction in which solutions of two ionic compounds are mixed is called a

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Part A A certain lens focuses light from an object 1.70 m away as an image 57.3 cm on the other side of the lens. What type of lens is it? converging diverging Submit Previous Answers Correct Part B What is its focal length? f = 42.8 cm Submit Previous Answers Request Answer Incorrect; Try Again; 4 attempts remaining

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Coronado, CPAs, are preparing their service revenue (sales) budget for 2022. Their practice is divided into three departments: auditing, tax, and consulting. Billable hours for each department, by quarter, are as follows: Department Quarter 1 Quarter 2 Quarter 3 Quarter 4 Auditing 2,200 1,600 2,100 2,500 Tax 2,900 2,700 1,800 2,200 Consulting 1,600 1,600 1,600 1,600 Average hourly billing rates are $60 for auditing, $72 for tax, and $80 for consulting services. Prepare the service revenue (sales) budget for 2022 by listing the departments and showing the billable hours, billable rate, and total revenue for each quarter and the year in total. Auditing: Billable hours Rate $ Total revenue $ Tax: Billable hours Rate $ 1 1 $ $ Total revenue $ $ Consulting: Billable hours Rate $ 1 $ 2 CORONADO, CPAS Service Revenue Budget For the Year Ending December 31, 2022 Quarter 3 $ $ Quarter 2 3 $ Quarter 2 3 $ $ $ $ Total revenue $ $ $ $ Total revenue $ $ $ $

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What is the molecular geometry and bond angle for the following molecule? \text{Cl} - \text{O} - \text{Cl} A) linear & 180° B) bent and 180° C) bent and 120° D) bent and 109° E) tetrahedral and 109°

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A company’s inventory on December 31, 2024, was $344,000 based on a physical count priced at cost, and before any necessary adjustment for the following: Inventory costing $49,000, shipped f.o.b. shipping point from a vendor on December 30, 2024, was received on January 5, 2025. Inventory costing $41,000, shipped f.o.b. destination from a vendor on December 28, 2024, was received on January 3, 2025. Inventory costing $57,000 was shipped to a customer f.o.b. destination on December 28, arrived at the customer’s location on January 6, 2025. Inventory costing $31,000 was being held on consignment by Traynor Company. What amount should the company report as inventory in its December 31, 2024, balance sheet?

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Problem #1-basics \rightarrow photelectric effect, hydrogen atom, wave nature of electron (a) The work function of barium and tungsten are 2.5 eV and 4.2 eV respectively. Check whether these materials are useful in a photocell to detect visible light. The wavelength of visible light is in the range 4,000-7000 A. (10 pts) (b) How much energy is required to remove an electron from the $n = 8$ state of a hydrogen atom? What is the frequency of the radiation that just ionizes hydrogen atom (from the ground state)? (15 pts) (c) Estimate the energy of electrons needed to study electron diffraction of crystal structure if the interatomic spacing is $-2\AA$. (15 pts) Problem #2-uncertainty principle (15 pts) A bullet of mass 0.03 kg is moving with the velocity 500 m/s. The speed is measured to an accuracy of 0.02%. Calculate the uncertainty in position x (OK within a factor of 2). Comment on the result Problem #3-time-independent 1D Schrödinger Equation (20 pts) The energy eigenvalue and the corresponding eigenfunction for a particle of mass m in a one-dimensional potential V(x) are: $E = 0$ and $\psi (x) = \frac{A}{x^2 + a^2}$ Deduce the potential V(x). Problem #4-1D barrier (25 pts) Consider a particle moving from the left ($x = -\infty$) to the right in the potential (step) shown in the sketch. Use boundary matching conditions to express the reflected and transmitted probability amplitudes in terms of the incident amplitude.

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Question 1 [25 marks] a. A refrigerator absorbs heat from a space at 2°C and rejects heat to the outside air at 25°C. If the COP of the refrigerator is 16, is this refrigerator realistic? Justify your answer. b. Starting from the general form of the first law of thermodynamics, derive the final form of the law for a throttling valve which loses heat to the surroundings. State all your assumptions c. Using the generalized compressibility chart, what is the compressibility factor for water whose pressure and temperature are 2.2 MPa and 500°C, respectively? Can the water in this case be considered an ideal gas? Why? d. Define the latent heat of vaporization? How much is the latent heat of vaporization of water at 300 kPa? e. Consider a system which contains saturated liquid-vapor mixture of water at 160°C. The system is located in a place where the local atmospheric pressure is 102 kPa. What is the absolute (actual) pressure inside this system? If we want to express the pressure of the system as gage pressure or vacuum pressure, determine which one is more suitable for this case and calculate it.

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4. Data taken from a stress-strain test for a specimen having an original diameter of 0.5" and a gauge length of 2" is given in the following table. The curve is linear between the origin and the first point. Plot the diagram, and determine: a. Young Modulus b. The load on the specimen that causes yielding c. The ultimate load that the specimen will support and ultimate stress. Load (kip) 0 6.52 8.93 9.70 10.11 10.49 10.21 ? (in) 0 0.0012 0.0020 0.0028 0.0036 0.0044 0.0050

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ALGORITHM | Sort INPUT: data[] - array size n with max element M, i.e. for 0 ? i < n, data[i] ? M. OUTPUT: sorted_data[] - sorted array 1. Initialize an array of M + 1 zeros e.g. ele_count = new int [M+1] 2. For every element j in data[], update the array of counts at data[j] by 1. e.g. ele_count[data[j]] += 1 3. Create a second array of size M + 1 with first element being the same as the first created array, and the j-th element being the sum of the j-th in the first array and (j - 1)-st element in the second array. e.g. positions[0] = ele_count[0] positions[j] = ele_count[j] + positions[j-1] 4. Initialize an array size n for sorted elements. e.g. sorted_array = new int[n] 5. For i = 0, 1, ..., n - 1, place data[i] into the position returned by one less than value of the second array evaluated at data[i]. Then decrement the value accessed in the second array by 1. e.g. sorted_array[positions[data[i]] - 1] = data[i] positions[data[i]] -= 1

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