H*! For Coffeyville, Kansas!
Source: 1880s Pamphlet put by the Union Pacific Railroad
Is the source reliable, and biased? Why or why not for each answer? What does it tell us?

QUESTION 3 Find the integral. Select the correct answer. 0 1 5 sec 5x- - 1 - sec x + C 3 01 1 sec x + =sec x + C 3 5 1 sec cx-sec x + C 7 5 01 1 secx + = sec x + C 7 5 tan x sec 5x dx By now, you should have read Chapter six in the body. In society, aging isa process that happens from the moment were conceived. However, societytells us aging is something different than that. Our cultures put a valuesystem on different sections, different parts of our chronological age, andwith it come certain expectations, standards, ideals and certain values,let alone the overall value of you are of your body and of your overallexistence. At that point in time, it's fascinating to read that there wasless of a sense of childhood and the earlier civilizations. It's hard toimagine that because this is not the existence that we live in today,However, you do have to take with that concept the notion of how differentlife Waas life expectancy was not as long. Their day to day activitieswould have been much more locally bound. These are big differences and howwe live as a people today in comparison to centuries ago, the the innocents of childhood. with the aid of a diagram ,explain the role ofparathyroid hormone and vitamine D metabolites in the control ofplasma calcuim concentrationq John is at a party and all of a sudden a memory seeminglycomes out of nowhere. Which of the following principles suggeststhat John is wrong with his assertion?O a) The Impurity principleO b) The Cue-driven principleO c) The Encoding-Retrieval principleO d) The Specificity principle The acceleration of gravity of the surface of Mars is about 38% that on Earth. If the oxygen tank carried by an astronaut weighs 300 lb on Earth, what does it weigh on Mars? 790 lb 300 lb 135 lb 114 lb Solve each of the following: 3. (x-y-2)dx + (3x + y - 10) dx = 0 L It is desired to estimate the proportion of cannabis users at a university. What is the sample size required to if we wish to have a 95% confidence in the interval and an error of 10%?a.68b.97 c.10 d.385 Benadryl is used to treat itchy skin in dogs. The recommended dosage is 1 mg per pound. What mass of Benadryl, in milligrams, should be given to a dog that weighs 33.1 kg ? mass of Benadryl: fins: An old coin has a mass of 3047mg. Express this mass in the given units. mass in grams: mass in kilograms: mass in micrograms: mass in centigrams: Protecting a computer device involves several layers of securities, including hardware system security, operating system security, peripheral device security, as well physical security. Moreover, it is also important that the applications that run on the computer device are secure. An unsecure application can open the door for attackers to exploit the application, the data that it uses, and even the underlying operating system (OS). Explain what can be done to secure an application software that is developed in house? 1. At a forward voltage of 0.6 V, the current density in astrongly asymmetric p-n diode is 0.5 A/cm2. Estimate concentrationsof doping in n- and p-type regions of this diode. A pension fund is making an investment of $122,000 today and expects to receive $1,820 at the end of each month for the next five years. At the end of the fifth year, the capital investment of $122,000 will be returned.Required: What is the internal rate of return compounded annually on this investment? Obtain i, and vo in the circuit below using Multisim. To do this, you will have to use the AC Sweep simulation. This mode will calculate the frequency response of our linear circuit below. You can also set the range of frequencies you want to observe. = Consider Vs 8 sin(1000t + 50) V. You will have to use an AC Voltage source and change the 3 default values to match our expression for vs. You can find the Current Controlled Current Source in "Modeling blocks" on the left-hand tab menu. Compare your results with your own calculations. 4 50mH -m ix + 2F= 0.5 ixt 2 VS Vo Which inequality is equivalent to the given inequality? -4(x + 7) < 3(x - 2) Problem 3 The reversible, gas-phase reaction (forward and reverse are elementary) A+B= 20 is to be carried out in a PFR. The feed contains only A and B in stoichiometric proportions at 580.5 kPa and 77C. The molar feed rate of A is 20 mol/sec. The reaction is carried out adiabatically. 1) Determine the equilibrium adiabatic conversion. 2) Using the PFR design equation, reaction kinetics and energy balance, determine an expression (integral equation) for the reactor volume as a function of only X (conversion of A). 3) Write down the necessary balances (material and energy) to solve the problem numerically in Matlab. 4) Determine (numerical solution of 2), or from 3) using Matlab) the plug-flow reactor volume necessary to achieve 85% of the adiabatic equilibrium conversion calculated in part 1). 5) Plot (-). (1/-ra), and T as a function of XA (using the incremental conversion approach described in class). 6) Determine the volume necessary for an adiabatic CSTR to achieve 85% of the adiabatic equilibrium conversion calculated in part 1). What is the exit temperature? Additional Data: Rate-law parameters for forward reaction only: k=0.035 dm /mol-min at 273 K E. -70,000 J/mol Thermodynamie parameters at 25C: AHA-40 kJ/mol CA-25J/mol K AH--30 kJ/mol pe 15 J/mol-K AH-45 kJ/mol Cnc - 20 J/mol-K Ke -kk-CCC - 25,000 (note that the definition of Ke specifies the convention for defining the rate constants) Problem 4 M-xylene can be reacted to form p-xylene however there is a competitive decomposition pathway. Both paths are shown below and can be considered irreversible (change in number of moles can be neglected). The specific reaction rates are given at 673 C m-xylene benzene + X (other hydrocarbon species) k-0.22s! m-xylene-p-xylene k-0.715! a) Calculate the space-time to achieve 90% conversion of m-xylene in an isothermal plug-flow reactor. Plot the total selectivities and yields as a function of tau. The feed is 75% m-xylene and 25% inerts and fed into the reactor at a flow rate of 2000 dm /min and a total concentration of 0.05 mol/dm! b) If E.-20.000 cal/mol and E-10000 cal/mol, what temperature maximizes the formation of p-xylene in a CSTR with a space time of 0.5 s (the reactor is operated isothermally)? Programming Language Levels 8. What type of language do computers understand? e 9. What is assembly language? 10. What do compilers do? t 2 11. What type of language is Javascript? Does the magnetising current of a transformer lie in-phase with the applied voltage? Justify. What is the effect of saturation on exciting current of transformer? What are the ill-effects of inrush current of transformer? Even at no-load, a transformer draws current from the mains. Why? What do you mean by exciting resistance and exciting reactance? Usually, transformers are designed to operate in saturated region. Why? J.E.P. Corps common stock is currently selling for $73.00. It is expected to pay a dividend of $3.00 at the end of the year. Dividends are expected to grow at a constant rate of 4% indefinitely. Compute the expected rate of return on J.E.P. Corp stock. A cylindrical metal can have a height of 28 cm and a radius of 11 cm. The electric field is directed outward along the entire surface of the can (including the top and bottom), with a uniform magnitude of 4.0 x 105 N/C. How much charge does the can contain? Please help me with this question.A pile of gravel, in the approximate shape of a cone, has a diameter of 30ft and a height of 6ft. Estimate the volume of the gravel to the nearest tenth. For a weak acid with a pKa of 6.0, calculate the ratioof conjugate base to acid at a pH of 5.0. Show your work forfull marks. [2 marks]