During a chemical treatment of wastewater the reaction rate found to be 20.8 /minutes when the temperature of wastewater was 29.4°C. What will be the reaction rate when the same reaction is performed in the evening when temperature reduced to Y °C. The value of temperature coefficient is 1.130

NaOH + FeCl_{3 >}    Fe(OH)₃ + NaCl

Morrison claims that the building of the Middlesex Canal can be seen in one of two ways: (1) "a continual and almost systematic botching of a very simple process"; or (2) "as an exercise rather more remarkable than [landing a man on the moon]" (Page 29). Which interpretation do you consider more accurate, and why? Use three examples to explain your argument.

what is a runoff coefficient in hydrology and what is hydrologic abstraction?

what is their use and why do they matter in the engineering world?

What are the primary strengths or weaknesses of the concept?

What would have made it easier for you to understand the method or concept?   

Rod OA rotates counterclockwise with a constant angular velocity of = 5 rad/s. The double collar B is pin connected together such that one collar slides over the rotating rod and the other slides over the horizontal curved rod, of which the shape is described by the equation r = 1.5(2 - cos θ) ft. If both collars weigh 0.75 lb, determine the normal force which the curved rod exerts on one collar at the instant θ = 120^o. Neglect friction.

Design an isolated footing with one side limited to 7 ft for the following: 1 ft x 1 ft edge column, axial loads PD = 130 kip and PL = 155 kip, fc’ = 3,000 psi, fy = 60,000 psi, qa = 4 ksf, and a distance from top of backfill to bottom of footing is 4 ft. Assume the soil density is 100 pcf. For the column, fc’ = 5,000 psi. Sketch your design.

1- William F. May says, “[The Professional] had better be virtuous. Few may be in a position to discredit him. The knowledge explosion is also an ignorance explosion; if knowledge is power, then ignorance is powerlessness.” Explain what May is saying here. Present an example of how this might apply to engineers.?

2- What is the method of line-drawing? An example will be useful in explaining this.?

A contractor bought a crane for erecting tall buildings. It was invoiced from JapanCIF (cost, insurance, freight) Manila at P2,500,000. Brokerage, bank, customs’duties, permits, etc. total P1,200,000. At the end of 10 years, he expects to sell itfor P500,000. Construct a schedule of the book value at the end of each year usingthe following methods: (a) Straight-Line Formula, (b) Sinking Fund Formula at 12%,(c) Matheson Formula (d) Double Declining Method and (e) SYD Method

Show complete solution. answe a, b,c,d,e.

1. What is technical communication, and what are some of the ways it can help people?
2. What are some common types of technical documents? List at least five types the book mentions. Please also make up two specific examples of the kinds of technical communication that people may need to produce in the workplace (use specific professions in your examples, like engineer, computer programmer, nurse, dentist, etc).
3. Describe some things that a writer can do to "focus on the reader" when writing and designing technical documents.
4. Why is technical communication so often collaborative in nature?

1. Two large fixed parallel planes are 12mm apart. The space between the surfaces is
filled with oil viscosity 0.972 N.s/m2

. A flat thin plate 0.25m2

area moves through the

oil at a velocity of 0.3 m/s. Calculate the drag force:
i. When the plate is equidistant from both the planes, and
ii. When the thin plate is at a distance of 4 mm from one of the plane surfaces.

A cantilever, 2.6 m long, carryinga uniformly distributed load w along the entire length, is propped at its free end to the level of the fixed end. If the load on the prop is then 30 kN, calculate the value of w. Determine also the slope of the beam at the support. If any formula for deflection is used it must first be proved. E = 210GN/m2; I = 4 x 10-6m4.