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angela barker

angela b.

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code class="asciimath">A welder has an order for nine pieces of angle iron, each 7( 1")/(4) long what is the total length of the angle needed in inches

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Why is self-reported data considered problematic as opposed to observable and measurable empirical data?

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The net products of glycolysis are __________. 4 pyruvates, 4 ATP and 4 NADH 2 pyruvates, 4 ATP and 2 NADH 2 pyruvates, 2 ATP and 2 NADH 1 pyruvates, 2 ATP and 2 NADH

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move(s) through a series of proteins of the inner membrane of the mitochondrion during oxidative phosphorylation. electrons oxygen carbon dioxide ATP

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What is the ball's velocity at the moment it reaches it's maximum height?

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Learning Goal: At the end of this module, you should be able to Determine from the indices of refraction whether an incident wave will experience a phase change upon reflection. Determine the wavelengths that will experience constructive or destructive interference using the thicknesses and refractive indices of the layers. Explain how the wavelengths that experience constructive interference change depending on the angle of incidence. Interface, wave 2), from the top of the next chitin layer (wave 3), and so forth as shown in the diagram below. Constructive interference between the reflected waves only occurs for specific wavelengths of light, and so the wing appears colored even though there is no pigment in the chitin (it is transparent). Except for the light reflected from the top surface (wave 1), each of the reflected waves will be reflected multiple times: ray 2 will be reflected again from the top of the chitin layer, and so forth. We will neglect those multiple reflections, as they do not affect the analysis of what wavelength of light will undergo constructive interference and provide the color of the wing. (The multiple reflections do influence how wide a range of wavelengths is reflected, and the intensity of the reflection.) From the TEM image above, it has been determined that in the scales of the Morpho wing, the chitin layers have a thickness de = 75 nm and the air layers between them have a thickness dg = 60 nm. The chitin has an index of refraction dchitia = 1.56. Part C - Get the wavelength If the wavelength of the incident light in air is λ and the index of refraction of the chitin layer is n Chitin layer as a thin film). Write your answer in nm. Value Units Request Answer What is the difference in the path traveled by wave 1 and the path traveled by wave 2, in terms of d.hi Request Answer Part E What is the next value Value Units Request Answer

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EXPERIMENT 8 SUBSTITUTION OR ELIMINATION? Post-Lab Analysis: (DUE DATE: One Week After Completion of the Lab) When submitting your report, you must hand in your signed observation/data sheet (-10% if not submitted) with the following items in the order given. Your answers must be written clearly or typed, if I can't read what you wrote I cannot correct what you wrote. Make sure to show all calculations required, keeping track of significant figures and showing units. A single PDF file must be submitted through the Dropbox in the assignments section on Omnivox. 1. Write a statement identifying what product was obtained from the experiment. Use your data to support your statement and properly reference any researched information. (2 marks) 2. Write a balanced chemical equation for each step of the reaction that occurred. Use non-structural chemical formulas of reactants and products, indicate the reaction conditions under the arrow (spectator ions may be omitted). For each reaction do the relevant stoichiometric calculations to determine the theoretical yield of the product formed, include the determination of the limiting reactant. Make sure your calculations are clear and neat. (6 marks) N.B.: 1) There are two steps to the reaction (2) The KOH is in aqueous solution therefore is not pure KOH. You are given a concentration in % by mass as well as its density to calculate the moles of KOH. (3) You may need to look up the densities of methanol and/or ethyliodide (references required) depending on which reaction took place. 3. Create a neat data table that includes all relevant information that you recorded and calculated values (including percent yield). Organize it in such a way that makes for easy comparison. (4 marks) 4. Write a complete mechanism using structural formulas for the reactions that occurred, beginning with 2-naphthol. (All species involved must be shown) (3 marks) 5. Most alcohols (alkanols) have pKa between 15.5 and 18, however, the pKa of 2-naphthol is 9.34. Explain why there is such a large difference in acidity between 2-naphthol and other alcohols (example: methanol). Draw structures to illustrate your explanation. This phenomenon plays a role in the first step of the mechanism drawn in Q4. Explain why. (4 marks) 6. Using complete sentences, write a discussion about whether the product obtained was the expected product, and explain your expectation using appropriate theory and scientific terminology. This should include why the other two products were not expected. (4 marks)

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The following relates to a proposed equipment purchase: Initial investment $ 158,000 Salvage value $ 5,500 Estimated useful life 4 years Annual net cash flows $ 53,100 Annual depreciation expense $ 38,125 The annual income amount used to calculate the accounting rate of return is:

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RC + (15 points) $v_s(t)$ $v_c(t)$ $i(t)$ This Problem is related to Problem 4.37 in the text. In the networks in the figure, an ac voltage source is a sinusoid $v_s(t) = 80 \cos \left(1000t - \frac{\pi}{4}\right)$ volts The resistance is R = 11 Ohms and the capacitor is C = 0.0165 Farads. associated with the circuit elements, The phasor voltage is $V_s =$ The impedance parameters are $Z_R =$ Ohms $Z_C =$ Ohms Find the phasor voltage across the capacitor $V_C =$ volts Write the voltage across the capacitor in the time domain $v_c(t) =$ volts volts

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Create a new HTML page called index.html. There is to be a form on the web page with the following fields for entering information on each player: Player's First and Last Name, DOB (Date of Birth), Email, Age, Gender, Address (Street, City, Town, Country), Educational Level, and Image of Self. Player's name, DOB, Gender, Town, and Educational Level are required values. Age must be calculated by the system from date of birth and must be greater than 12. First names must be more than three (3) characters in length. Email address must be validated to only accept email addresses that end with "@SomeEmail.com". Create a JavaScript function called Register that will accept the values entered in the fields listed in Task 1, validate all entries using JavaScript validations, and then append the validated content to a global JavaScript array called PlayersData[]. Add a button called Register to the entry form created in Task 1 and ensure that this button calls the function, Register(), from Task 2 whenever it is clicked. After the Register button is clicked, all the fields from Task 1 and Register button must be disabled. Additionally, an End Game button along with the Play button (from Task 5 below) must now be enabled.

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