What is the angle between cables “AD” and “AC
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What is the angle between cables “AD” and “AC”?
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- The following are the given information of the test specimen material: Specimen Material Specimen Width (mm) Specimen Thickness (mm) Specimen Initial Length (mm) Specimen Final Length (mm) aluminium 1.5 13.5 42.4 47.5 Grip Separation 50 mm Total Elongation of the specimen is given by Elongation = i-io/io x 100 l : Final length, in m l0 : Initial length, in mThe dependence of thermal conductivity of a material on temperature is given by an empirical equation k = a ebT where a and b are constants, and k is in W/m-K and T is in K. Spot the true statement from the following set. a, a and b have the same dimension as k. b. a has the dimension of k and b is dimensionless. c. a and b are dimensionless. d. a has the dimension of k and b has the dimension of T.1. Energy consumption in a country from 2001 to 2011 increased from 1041.3 million to 1526.1 million BOE (barrels of oil equivalent). If the high calorific value (HHV) of the oil is 141,000 kJ/gallon what is the increase in energy consumption over 10 years in Joule units. What is the rate of energy consumption per year? 2. Based on data on the rate of energy consumption per year from question no. 1, if the growth rate energy 2.5% per year, calculate the doubling time (td) and what is the approximate rate of energy growth in 2021.
- Suppose you're converting a bill of materials for machining feedstock from the British gravitational (U.S. system) of units to International System (SI) units. Your goal is to have all of the material quantities in kilograms. Your bill of materials lists values for required weights of brass rod in pounds. To convert to these values to kilograms you first you divide by gravitational acceleration in feet per second squared to get a mass in slugs, then convert slugs to kilograms using standard conversion factors. Group of answer choices True FalseFor the following core plugs, gas floods were carried out using nitrogen. The oil produced from plugs 1 and 2 for the gas floods was 9.0 and 6.9 cm3, respectively. What is the residual oil saturation (Sorg) in these two plugs? Plug No. Initial Plug Saturations (%) ∅ Bulk Volume ρgrain ρo ρw ρg So Sw Sg (%) (cm3) (g/cm3) (g/cm3) (g/cm3) (g/cm3) 1 64.64 35.36 0 38.27 63.05 2.719 0.723 1.0216 0.001 2 71.93 28.07 0 34.63 51.05 2.724 0.723 1.0216 0.001The following table lists molecular weight data for a polypropylene material. Compute the number-average molecular weight, Molecular Weight Range (g/mol)//// xi////// wi 8,000–16,000//// 0.05/// 0.02 16,000–24,000 ///0.16// 0.10 24,000–32,000 ///0.24// 0.20 32,000–40,000 ///0.28// 0.30 40,000–48,000 ///0.20// 0.27 48,000–56,000 ///0.07// 0.11 Round your answer to 0 decimal places.
- In an experiment designed to determine the value of a parameter n, the actual value that is determined during the experiment is ln n which is determined to be ln n = –1.17828±0.07023. What is the value of n? Make sure that you quote the answer to the correct number of significant figures.Convert each of the following into scientific notation and into engineering notation: Scientific notation Engineering notation SI unit with prefix Example: 36,800W 3.68 × 104 W 36.8 ×103 W 36.8 kW a) 3427m b) 0.00456A c) 0.000984N d) 3100.0 × 102N e) 0.0114 × 104m f) 2205.2m g) 30.0 ×10-2s h) 0.0473s i) 650,502Pa j) 3.03 ×10-1A k) 1000 × 10-3NIn a hypothetical diesel engine the fuel is compressed from 579mL to 32.9 mL. This rasies the temperature of the fuel form 25°C to its ignition temperature of 210°C. If the fuel begins at 1.00atm, what is the pressure of the fuel at its ignition temperature.? Express your answer to 1 decimal place
- Refer to the Worksheet shown, set up to calculate the displacement of a spring. Hooke's law states that the force (F, in newtons) applied to a spring is equal to the stiffness of the spring (k, in newtons per meter) times the displacement {x, in meters): F= kx. ;Chapter 10, Problem 161CA, Refer to the Worksheet shown, set up to calculate the displacement of a spring. Hooke's law states Cell A3 contains a data validation list of springs. The stiffness (cell 83) and maximum displacement (cell C3) values are found using a VLOOKUP function linked to the table shown at the right side of the worksheet. These data are then used to determine the displacement of the spring at various mass values. A warning is issued if the displacement determined is greater than the maximum displacement for the spring. Use this information to determine the answers to the following questions. Write the expression, in Excel notation, that you would type into cell 86 to determine the displacement of the spring.…Suppose we got the following data during a test of a 2- stroke engine in which gas is usedas a fuel:Diameter of the piston = 149 mmStroke length = 179 mmClearance volume = 0.88 literrpm of the engine = 302Indicated mean effective pressure = 6.0 barGas consumption = 6.0 m3/hCalorific value of the gas (fuel) = 16990 kJ/m3Make a clear sketch the geometry of this engine using the data and determine thefollowing:i. Indicated power developed by the engine in watt.ii. Air Standard Efficiencyiii. Indicated thermal efficiency of the engine.A vertical chemical reactor undergone a maintenance in which its internals were subjected inspection from bottom to top before catalyst loading. A site engineer (63.00 kg) was tasked to do the inspection and he stopped from time to time at each portion to inspect. A safety officer monitored the engineer’s position while watching from the top and reported his position (Refer to the photo attached. CORRECTION for data table at t=70.00 min, position=725.0 cm): Solve for: (a) Power he exerted at t = 50.00 min (b) Power he exerted at t = 65.00 min (c) Total Work he exerted throughout the inspection (d) Average Power throughout the inspection