Engineering

What happens to resistance in the strain gauge and voltage drop from a connected Wheatstone bridge if you were to pull the strain gauge along the long axis
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If the same type of thermoplastic polymer is being tensile tested and the strain rate is increased, it will: g
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A step-up transformer has 20 primary turns and 400 secondary turns. If the primary current is 30 A, what is the secondary current
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A frost free, 17 cu. ft. refrigerator-freezer uses energy at a rate of 500. watts when you hear the compressor running. If the fridge runs for 200. hours per month, how many kilowatt-hours of energy does the refrigerator use each month
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Plzzzz helppp design process in order
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which type of design model gives general guidlines for approching a problem allows creativity and flexibility and relies on an engineers experience and judgement? Lean manugacturing, Six Sigma, Prescriptive, Descriptive
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A 2-m-internal-diameter spherical tank made of 0.5-cm-thick stainless steel (k = 15 W/mK) is used to store iced water at 0C in a room at 20C. The walls of the room are also at 20C. The outer surface of the tank is black (emissivity = 1), and heat transfer between the outer surface of the tank and the surroundings is by natural convection and radiation. Assuming the entire steel tank to be at 0C and thus the thermal resistance of the tank to be negligible, determine (a) the rate of heat transfer to the iced water in the tank and (b) the amount of ice at 0C that melts during a 24-h period. The heat of fusion of water is 333.7 kJ/kg. Now, consider a 2-m internal diameter double- walled spherical tank configuration is used instead to store iced water at 0C in a room at 20C. Each wall is 0.5 cm thick, and the 1.5-cm-thick air space between the two walls of the tank is evacuated in order to minimize heat transfer. The surfaces surrounding the evacuated space are polished so that each surface has an emissivity of 0.15. The temperature of the outer wall of the tank is measured to be 20C. Assuming the inner wall of the steel tank to be at 0C, determine (c) the rate of heat transfer to the iced water in the tank for this double-walled tank configuration and (d) the amount of ice at 0C that melts during a 24-h period for this double-walled tank configuration.
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I ran across this symbol in some Electrical wiring documents and I am unaware of what this means. Any help?
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Discuss typical advantages and disadvantages of an irrigation system?
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g Consider the following observations on shear strength (MPa) of a joint bonded in a particular manner. 22.6 40.4 16.4 72.4 36.6 109.8 30.0 4.4 33.1 66.7 81.5 (a) What are the values of the fourths
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4 An approach to a pretimed signal has 30 seconds of effective red, and D/D/1 queuing holds. The total delay at the approach is 83.33 veh-s/cycle and the saturation flow rate is 1000 veh/h. If the capacity of the approach equals the number of arrivals per cycle, determine the approach flow rate and cycle length.
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The object in ....................... shadow is not seen completely
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Analyze the boundary work done during the process having a rigid tank contains air at 500 kPa and 150C. As a result of heat transfer to the surroundings, the temperature and pressure inside the tank drop to 65C and 400 kPa, respectively.
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TeachersMover CharismaClassmates11 studentsKenny Andres-PerezMichelle BentezSamuel HerefordRUB BriberChris tel JosephCody AlexaDaisy Monteria IntervalJunior RiveraEmmanuel Williams
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The roof of a house has three layers: (1) 2 inch thick pine, (2) 4 inches of fiberglass insulation and (3) 0.1 inch thick Asphalt shingles. Calculate the rate of flow of heat (BTU/hour) through the roof. The temperature inside the house is 700F and the temperature outside is 300F. The R/inch for pine is 1.28, the R/inch for fiberglass is 3.0 and the R/inch for Shingles is 4.0. Take the area of the roof to be 500 square feet. The Unit of R is mixed: ft2 . 0F.h/BTU
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One reason the shuttle turns on its back after liftoff is to give the pilot a view of the horizon. Why might this be useful?NO LINKS
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1. (15) A truck scale is made of a platform and four compression force sensors, one at each corner of the platform. The sensor itself is a short steel cylinder, 22 mm in diameter. A single stain gauge is pre-stressed to 3% strain and bonded on the outer surface of the cylinder. The strain gauges have a nominal resistance (before pre-stressing) of 340 Ohms and a gauge factor of 6.9. The steel used for the cylinders has a modulus of elasticity of 30 GPa. Calculate: a. The maximum truck weight that the scale can measure. b. The change in resistance of the sensors for maximum weight. c. The sensitivity of the scale assuming the response of the strain gauges is linear.
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Find the velocity and rate of flow of water through a rectangular channel of 6m wide and 3m deep when it's running full. The channel is having a bed slope of 1 in 2000. Take Chezy's coefficient, C=55
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Problem 1. Network-Flow Programming (25pt) A given merchandise must be transported at a minimum total cost between two origins (supply) and two destinations (demand). Destination 1 and 2 demand 500 and 700 units of merchandise, respectively. At the origins, the available amounts of merchandise are 600 and 800 units. USPS charges $5 per unit from origin 1 to demand 1, and $7 per unit from origin 1 to demand 2. From origin 2 to demand 1 and 2, USPS charges the same unit cost, $10 per unit, however, after 200 units, the unit cost of transportation increases by 50% (only from origin 2 to demand 1 and 2). a) Formulate this as a network-flow problem in terms of objective function and constraint(s) and solve using Excel Solver. b) How many units of merchandise should be shipped on each route and what is total cost?
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A small ship capable of making a speed of 6 knots through still water maintains a heading due east while being set to the south by an ocean current. The actual course of the boat is from A to B, a dis- tance of 10 nautical miles that requires exactly 2 hours. Determine the speed vC of the current and its direction measured clockwise from the north.
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whats is the purpose of the stator winding
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What would the Select lines need to be to send data for the fifth bit in an 8-bit system (S0 being the MSB and S2 being the LSB)?A. S0 = 1, S1 = 0, S2 = 0B. S0 = 0, S1 = 0, S2 = 0C. S0 = 0, S1 = 1, S2 = 0D. S0 = 0, S1 = 1, S2 = 1
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Air is compressed by a 40-kW compressor from P1 to P2. The air temperature is maintained constant at 25C during this process as a result of heat transfer to the surrounding medium at 20C. Determine the rate of entropy change of the air. State the assumptions made in solving this problem
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7Which wire can carry a higher current?eredtofSelect one:A. AWG 6B. AWG 18C. AWG 12D. AWG 24
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