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- Answer the following questions based on scaling arguments, i.e., by applying “the variable X must be proportional to the Zth power of variable Y because of some relevant physical principle”-type reasoning. A. In a surface passivation process for Si wafers, the required processing time to create a 0.1 micron thick SiO2 layer on a pure Si wafer was 2 hours. Estimate the process time required to create an SiO2 layer of thickness 0.15 microns on a pure Si wafer under identical processing conditions. B. A puddle of volatile liquid of initial thickness of 1 cm was found to evaporate to form a thinner 0.5 cm layer in 1 day. How much longer would it take for the liquid layer to evaporate completely?The data provided by a water bottling company for the year 2020 to carry out Break Even Analysis and provide them the results, is as follows. The fixed cost of the year is 9000.0 R.O The estimated sales are 2200000 units The cost of water treatment / unit 12 baize The cost of bottling / unit 08 baize The cost of labelling / unit 08 baize The cost packing / unit 10 baize The cost of labour and maintenance / unit 20 baize The cost of 1 liter bottle (plastic bottle) 12 baize Each unit is sold at price 95 baize Construct the B.E.P chart on a graph sheet and indicate M.o.S, B.E.P and also indicate the new B.E.P, & M.o.S after the improvement measures has been taken and show all mathematical calculations. 1. Determine the B.E.P 2. Determine the profit 3. Margin of safety. 4. Write your decisions to improve the profits of the company and to reduce the B.E.PBT - F X A Some X Mech X E Blank X U Some X (4) W X V Accor AlpQLSespFLR_U8a1ISgmucPg8mqSkCgmsdnT2tb3o0QG5MQMUc5rg/viewform?hr_submission%=DCH 2 Maps GE News 14 JIIT University Noid... Plus One English Te.. NPTEL :: Mathemati... U Clear selection 1 point Q.14. A mass of 35kg is suspended from a weightless bar AB which is supported by a cable CB and a point at A as shown in figure. Pin reactions at A on the bar AB are 275 mm R(x)=343.4 N, R(y) =755.4N R(x)=343.4 N, R(y)=0 R(x)=755.4 N, R(y)=343.4N R(x)=755.4 N, R(y)=0 Clear selection Q.15. A string 2 m long is tied to the ends of a uniform rod that weighs 60 N 1 point and 1.6m long. The string passes over a nail so that the rod hangs 32% 近 O O
- The distance between a flying drone carrying a laser scanner and a building (Figure 4) is 300m. The distance can be calculated using equation below, where, ris the distance, c is the speed of light and At is the time taken from the laser scanner and the object. r = 1 .c. At 2 Given the building size and shape as in Figure 4. Scanning resolution for this scanner is 4000 points in 1 m?. Consider c = 3.00x10® m/s. Calculate the time taken to scan all possible surfaces of the building. 20 m 40 m 1/8 circle Radius = 25m Width = 40 m 50 m 25 m 10 m 15 m 20 mUnit 7: Dynamic Surfaces and Chains Essay Question :d Cains 333 D 11 M . 11233200 Multiple-Choice Questions What dynamic surfaces can be found in a classic SLR camera? A. Lens B. Shutter C. Aperture adjuster D. Film Which of the following material attributes may present a problem in dynamic surface designing? A. Hardness B. Elasticity C. Opacity D. Smoothness edu.curriculum@stratasys.com Examine the image below. What would you do to improve the nesting layout ad shorten print time? A. Print tall parts and short parts separately B. Rotate tall parts to shorten Z axis height and reduce height differences between two part types C. Align all 6 parts to one row to reduce print-head travel time Increase spacing between parts D.2. The results from a settling column test performed on a municipal sewage from a certain town were as presented below. The experiments were conducted on a sample of sewage which is sieved through a 1.2 mm mesh to remove gross solids that would block valves. 501 of the sample weighed 1.352 gm. After drying. Sampling Time (min.) 0 60 180 360 Experimental results for amount of SS remaining in the sample (mg/l) Sampling depth (cm) 100 230 150 118 90 200 230 150 143 115 300 230 159 147 134 400 230 157 152 145 The sewage treatment work incorporates two primary settlement tanks each of a diameter of 25 m. The sewage flow to the tanks is 0.3 m³/s. Find the percentage expected SS removal at the works.
- nces Mailings Review View Help ntain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing 1 2. 8.1 9 10 1 11 12 1 13 14 T 15 1 16 17 1 1 [8] QUESTION 2 Calculate the length of the resistor of a circular wire used in a heater element connected to a 240V supply and the heater consumes 8 joules of energy in 0,25 seconds. The resistor element is made of aluminium and it has a uniform cross-sectional area with a diameter of 0,00016 inches. Hints: linch = 25,4 mm, resistivity of aluminium = 2,825 x 10-6 Ocm %3D [S] QUESTION 3 A de shunt motor after running for several hours on constant mains of 350 V takes a field current. Oil drilling rigs are used for drilling holes for identification of oil or natural gas sources and for extraction.An oil drilling system can be thought of as a drillinside a straw, which is placed inside a glass. Thestraw assembly represents the drill string, the drillsurrounded by fluid, and the glass represents thevolume, the annulus, around the drill string throughwhich slurry and eventually oil will flow as the drillingprogresses.Assume that we want to control the drill pressure output, Pd (t), with a reference voltage input,Vd (t). A control loop model (Zhao, 2007) consistsof a drill-pressure controller, drill motor subsystem,pulley subsystem, and drill stick subsystem. Theoutput signal of the latter, the drill pressure, Pd (t),is measured using a transducer, which transmits anegative feedback voltage signal, Vb(t), to the drillpressure controller. That signal is compared at theinput of the controller to the reference voltage, Vr(t),Based on the error, e(t) = Vr (t) – Vb(t),…立 Bb Slide 1 X 2 28010712 plackboardcdn.com/5c082fb7a0cdb/28010712?X-Blackboard-Expiration3D1645034400000&X-Blackboard-Signature=D06jX8mbU.. LE Seneca Virtual Com... 乙/ L %001 Problem set # 4 Chapter 5 1) A reservoir of water is drained by a 254mm diameter, square-edge orifice with center elevation 88.12m that flows directly into a stream with water surface at elevation 89.49m. The elevation of the reservoir surface is 90.48m. Find the flow through the orifice. 2) A 150-mm- diameter, square-edge orifice convey flow from a reservoir with water level at elevation 79.25m. the center of the orifice is at elevațion 66.10 m. Find the discharge for the free flow. 3) In problem 2 if the tail water is at elevation 71.98m, what is the discharge? 4) Find the discharge over a 90° V-notch weir if the head is 190.5mm. 5) Using the diagram below, find the discharge over the rectangular, sharp-crest weir Elev 37.00 Crest elev. 36.58 Channel inv. 36.12 O 7°C Cloudy ョ ((Dツ hp du
- The graph below shows the absorption spectra of a substance to determine the optimal wavelength. Based on the graph shown below, what value is considered the optimal wavelength for Molecule 1 to measure absorbance? Absorption 0.851, 0.800 0.600 0.400 A 0.0 251.97 300.00 0.851 0.400 280 395 400.00 500.00 Wavelength, nm 600.00 696.03A nearsighted eye is corrected by placing a diverging lens in front of the eye. The lens will create a virtual image of a distant object at the far point (the farthest an object can be from the eye and still be in focus) of the myopic viewer where it will be clearly seen. In the traditional treatment of myopia, an object at infinity is focused to the far point of the eye. If an individual has a far point of 39.5 cm, prescribe the correct power of the lens that is needed. Assume that the distance from the eye to the lens is negligible.i%TA lI. In. 1 1:19 و أمتحان يومي.pdf Fox flow mate 28 Lis Sind EL. 60M puup Power 150 Mm El. 30M Scanned by CamScanner