The demand for a two-wheeler was 900 units and 1030 units in April 2015 and May 2015, respectively. The forecast for the month of April 2015 was 850 units. Considering a smoothing constant of 0.6, the forecast for the month of June 2015 is
Q: A reversible heat engine absorbs 3000 kJ from a reservoir at 1000 K and rejects 2500 kJ at 500 K. Fi...
A: At 1000 degrees Celsius, a reversible heat engine takes 3000 kJ from a reservoir and rejects 2500 kJ...
Q: Write a report about mechanical hazard: 1-potential hazards 2- prevention measures 3- type of Person...
A: Mechanical hazards are created by the use of or exposure to mechanical operated equipment and machi...
Q: Homework: Draw S.F.Ds and B.M.Ds for the following beams: 12 kN/m 40 kN A В 2 m
A:
Q: A condenser takes in steam with enthalpy of 2450 kJ/kg and mass flowrate of 2 kg/s. It also discharg...
A: in condenser process is constant pressure.
Q: Clearance volume of a reciprocating compressor is 300ml, and the volume of the cylinder at bottom de...
A: The clearance ratio of the compressor is 3/17.
Q: Evaluate whether this refrigerator is possible. The inside temperature is -10degC in the icebox. The...
A: Given Data TH=25°C=298 K Tc=-10°C=263 K COP=7.5
Q: Circular blanks having following data; Diameter = 35 mm %3D Thickness= 2 mm If the clearance per sid...
A: Given Data: Diameter of the blank, d=35 mm The thickness of the blank, t=2 mm
Q: Find v,(t), i,(t) for t2 0.
A:
Q: Differentiate a lathe machine into a shaper machine in terms of operating principle
A:
Q: Two hard rubber blocks (G -334 kPa) are used in an antivibration mount to support a small machine, a...
A: Given Data: Shear modulus, G=334 kPa Load applied, P=456 N
Q: Water flows through 100 mm diameter pipe from A to B. The velocity is 10 m/s, the pressure is 300 kP...
A: GivenPB=400kPazB=2m
Q: Please try to answer in text Water flows through 100 mm diameter pipe from A to B. The velocity is 1...
A: Hydraulic grade line is defined as piezometer head.
Q: 7. In the clevis shown in Fig. 1-11b, find the minimum bolt diameter and the minimum thickness of ea...
A:
Q: The second law of motion gives the measure of which of the following? O Acceleration O Angular Momen...
A: State the second law of motion.
Q: An air compressor is operated at cut-in and cut-out pressures of 3500 kPa and 5200 kPa, respectively...
A:
Q: Q4. The change in the total energy of the closed system is imasbalame Emi = {me Q-W=AH]/ fluid..role...
A:
Q: fill out density chart
A: Given: For aluminium: mass→m=0.0122 Kg length→L=0.0222 m Diameter→D=0.016 m Hence volume of the alim...
Q: 22. Calculate the rpm for machining a cast iron work piece 10 inches in diameter and the cutting spe...
A:
Q: 2 m hollow cast iron pole has an outside diameter of 250 mm and a thickness of 10 mm. The pole is su...
A: Given Data P=15 kN D=250 mm t=10 mm
Q: Problem 1. Use INA = I, + Ad² for moment of inertia. From the beam and loadings shown. a. Compute th...
A:
Q: Give 3 examples of a plastic product or component in which creep and stress relaxation would be impo...
A: When subjected to load, materials exhibit an increasing deformation with time, this is called creep....
Q: A repeating turbine stage with R=0 operates with axial entry. The nozzle turns the flow by 640. Taki...
A:
Q: 4. Find the measure of the missing angle in the triangle below. 95° 35°
A:
Q: 3.4 Find the flow rate of water through the system shown for the turbine to produce 20 kW. Neglect f...
A:
Q: A shaft of radius R is held concentric within a sleeve of radius R2. If the shaft is stationary whil...
A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub- parts ...
Q: A simple truss is shown below. (How do we know it's a simple truss? Answer that question before you ...
A: As per bartleby guidelines we are allowed to solve only 1st 3 subparts if multiple subparts are post...
Q: A rectangular beam 150mm wide by 250mm high carries a uniformly distributed load of 8kN/m and a conc...
A: given; dimension of rectangular beam(b*d)= 150mm*250mmlets take reaction force=R1lets take reaction ...
Q: The vertical plate ABED is pinned to rod OA at A and supported by a roller at E which slides in a ho...
A: Given DataL=2mVE=1.1m/snumber of link=4
Q: In blanking operation the clearance is provided
A: Given; Blanking operation the clearance is provided on;
Q: To maximize production and minimize pumping costs, crude oil is heated to reduce its viscosity durin...
A: It is required to determine convection heat transfer resistance on inside of the pipe per unit lengt...
Q: A uniform slender rod rests on a car seat as shown. Determine the deceleration a for which the rod w...
A: Given data as per question Horizontal angle =70
Q: The rear window of an automobile is defogged by passing warm air over its inner surface. If the warm...
A:
Q: Determine the time required for a car to travel 9.181 km along a road if the car starts from rest, r...
A:
Q: The static head at a certain station on a 101.6 mm schedule 40, clean iron cold pipe is 70.69 m The ...
A:
Q: H.W: replace the following polar equations by equivalent Cartesian equation, then describe or identi...
A:
Q: etermine the surface tem
A: Given: Q=0.4 W d=0.3 cm L=1.8 cm v=240 m/min air temp=35oC To determine: Surface temperature
Q: 2. For the plan area shown, determine the location of the Centriod. Use you're the last two digits o...
A:
Q: Q5/ Determine the resultant of the force system of fig. And locate it with respect to point A 100N 2...
A:
Q: Compute for the lift force acting on a wing with an area of 56 sq. ft., velocity of 75 ft/s at an al...
A: Find the lift force.
Q: What do you mean by intermediate-pressure steam? Is the pressure of the inlet the same as that of ou...
A:
Q: QI/ An iron block of mass 30 kg is hanging from the two supports A and B as shown in the diagram. De...
A: Givenm=30kg
Q: how does your computations go when for example all needed info are derived as usual and THE SAME FLU...
A: During solidification, fluid movement is common, which disrupts the above-mentioned solute and he...
Q: 2- Obtain a General Conservation of Mass Equation (the Continuity Equation) in 3-D Cylindrical Coord...
A: The Law of Conservation said that mass is neither generated nor destroyed in chemical interaction...
Q: What fluid properties are involved in computing for the Reynolds number? Discuss all. Where do you u...
A:
Q: 2.333 = (x).28
A: Given that 2.333=(x)0.2857 Shifting power to left side (2.333)(1/0.2857) = x x= (2.333) 3.5
Q: 3. what are individual efficiencies that affect operation ?
A: Given Data : Individual efficiency Operation
Q: Enthalpy is a state function. We can think of the first law of thermodynamics as an energy balance s...
A: Enthalpy is the sum of internal energy and product of pressure and volume. It is property of system....
Q: A boiler takes in water at 200 degrees Celsius and 13 MPa (1) and another water at 1.0 MPa (2), and ...
A: At 13 MPa: Saturation temperature→Tsat1=331°C And →hf=1532.43 KJKg and hg=2726.66 KJKg But initial a...
Q: n medicine, there are many essential but difficult topics, phenomena, concepts and problems. The int...
A: Given Doctors and engineers To find Difficulties
Q: frictionless ring at B. Knowing that the tension in the cable is 385 N, determine the magnitude and ...
A:
Step by step
Solved in 2 steps with 2 images
- The same engineer decides to look into rates of cooling for liquids toexperiment with different cooling solutions for servers. She finds thatthe rate of cooling for one liquid can be modelled by the equation:y = 48 × 0.99t(0 ≤ t ≤ 80)where y is the temperature of the liquid in degrees Celsius and t is thetime in minutes.(i) State whether the type of reduction for this model is linear orexponential. Describe how reduction rate differs between linear andexponential functions. (ii) Calculate the temperature when t = 20. [3](iii) Write down the scale factor and use this to find the percentagedecrease in the temperature per minute. (iv) Use the method shown in Subsection 5.2 of Unit 13 to find the timeat which the temperature is 30◦(v) Determine the halving time of the temperature.Using the information in Problem 1.22, estimate the ambient air temperature that could cause frostbite on a calm day on the ski slopes. 1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas gives both an air temperature and the wind-chill temperature. The air temperature is measured with a thermometer that is not affected by the wind. However, the rate of heat loss from the skier increases with wind velocity, and the wind-chill temperature is the temperature that would result in the same rate of heat loss in still air as occurs at the measured air temperature with the existing wind. Suppose that the inner temperature of a 3-mm-thick layer of skin with a thermal conductivity of 0.35W/mKis35C and the air temperature is 20C. Under calm ambient conditions the heat transfer coefficient at the outer skin surface is about 20W/m2K (see Table 1.4), but in a 40-mph wind it increases to 75W/m2K. If frostbite occurs when the skin temperature drops to about 10C, do you advise the skier to wear a face mask? What is the skin temperature drop due to the wind?Forecast sales for the 7th period. For leveling, use exponential smoothing 0.20 and moving average 3 for averaging; and linear and exponential functions for trend data. Assume an initial exponential forecast of 60 units in period 2 if you decide to use it (i.e., no forecast for period 1). Period Demand 1 67 2 72 3 68 4 20 5 70 6 66 7 68
- The processing of raw coal involves “washing,” in which coal ash (nonorganic, incombustible material) is removed. The article “Quantifying Sampling Precision for Coal Ash Using Gy’s Discrete Model of the Fundamental Error” (Journal of Coal Quality, 1989:33–39) provides data relating the percentage of ash to the volume of a coal particle. The average percentage of ash for six volumes of coal particles was measured. The data are as follows: Volume (cm3) 0.01 0.06 0.58 2.24 15.55 276.02 Percent ash 3.32 4.05 5.69 7.06 8.17 9.36 Using the most appropriate model, predict the percent ash for particles with a volume of 48 cm3. Round answer to three decimal places. * the answer i got was of 6.260 was wrongexplains how the two methods of parameter estimation, namely the method of parameter estimation and the method of moments and percentile matching, are used to fit distributions to data for actuarial calculations.The heat transfer between a solid body and a fluid medium is determined by the equation Q=h·A·(Ts-Tf). Here; Q is the amount of heat transferred, h is the heat transfer coefficient, A is the heat transfer surface area, Ts is the temperature of the surface and Tf is the temperature of the fluid. These parameters were measured as h=250±1.75 W/m2ºC, A=20±0.75 m2, Ts =100±0.75ºC and Tf =25±0.75ºC, including error levels. What is the total uncertainty in the amount of heat transferred, in ±%? a. 3.98 b. 4.07 c. 2.73 d. 2.95 e. 3.88
- Applying the concept of discretization, determine the average value, the true RMS value, the arithmetic mean and the root mean square.The fuel gage for a gasoline tank in a car reads proportional to its bottom gage. The tank is 35 cm deep and accidentally contaminated with 3 cm of water. Specific gravity of gasoline is 0.68. If the tank has a uniform horizontal cross-sectional area of 0.45 m2, how many liters of gasoline are required to fill the tank? Select the correct response: 9.53 L 7.41 L 6.35L 8.47L The fuel gage for a gasoline tank in a car reads proportional to its bottom gage. The tank is 35 cm deep and accidentally contaminated with 3 cm of water. Specific gravity of gasoline is 0.68. What is the gage reading when the tank is filled with gasoline? Select the correct response 2.87 kPa 2.11 kPa 2.56 kPa 2.34 kPaAssume that annual energy requirement of an industry is 20000 kWh . DETERMINE size of wind turbine that is required to be installed to meet the energy requirement . Following assumptions are taken into account for estimation Annual energy requirement - 20000 kWh Propeller type wind machine is used . Coefficient of performance -0.40 Wind speed at 15 meter height is 5 meter / sec ( if the turbine hub is placed at the height other than 15 meter , the wind speed should be estimated as shown in " vertical wind speed variation section Density of air - 1 kg / m Capacity factor -0.30
- When is the exponential smoothing model equivalent to the naïve forecasting model? Select one: a. alpha= 0.5 b. alpha = 0 c. alpha=1 d. alpha= 5To estimate the mean age for a population of 4000 employees, a simple random sample of40 employees is selected.a. Would you use the finite population correction factor in calculating the standard errorof the mean? ExplainDetermine the blade length for a wind turbine that supplies an electrical power output of 1.95 MW and given the following parameters: Wind speed = 51 km/hr The gear, generator and electric efficiencies are 93%, 95% and 91% respectively. The power coefficient of the wind turbine is the maximum possible as given by the Lanchester-Betz limit. Assume the atmospheric air conditions are 1.01325 bar and 27 °C