Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
3rd Edition
ISBN: 9780133593211
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
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Chapter 14.5, Problem 8CC
To determine
Whether the filter is behaving as expected or filter needs attention.
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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.
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Your professor has recruited you to work in her lab to help her win the Nobel Prize. It is critical that your work be as accurate as possible. Rather than using the stated volumes of glassware in the lab, you decide to calibrate each piece. An empty 10-mL volumetric flask weighed 10.263 4 g. When filled to the mark with distilled water at 208C, it weighed 20.214 4 g. What is the true volume of the flask?
Chapter 14 Solutions
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
Ch. 14.1 - The following table lists the number of computer...Ch. 14.2 - For the following mass data g1ven in units of...Ch. 14.2 - For the following temperature data given in units...Ch. 14.3 - For each of the following graphs, decide if the...Ch. 14.3 - Use the scenario described in Example 14-4. For...Ch. 14.4 - Consider the weight of shipping boxes sent down an...Ch. 14.4 - Prob. 7CCCh. 14.5 - Prob. 8CCCh. 14 - Prob. 2ICACh. 14 - Prob. 3ICA
Ch. 14 - Prob. 4ICACh. 14 - You use the data from the Mauna Loa observatory in...Ch. 14 - Polyetheretherketone (PEEK)TM polymers are...Ch. 14 - Prob. 7ICACh. 14 - During November, the heading system in your...Ch. 14 - You are assigned to inspect metal-composite beam...Ch. 14 - Use the scenario described in the preceding...Ch. 14 - You test several temperature probes by inserting...Ch. 14 - Use the scenario described in the previous Problem...Ch. 14 - Prob. 14ICACh. 14 - The following data were collected from a...Ch. 14 - The following data were collected from a...Ch. 14 - Prob. 1RQ
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- Industries involved in viscosity measurement [27, 29] continue to use the CGS system ofunits, since centimeters and grams yield convenient numbers for many fl uids. The absoluteviscosity ( μ ) unit is the poise, named after J. L. M. Poiseuille, a French physician who in1840 performed pioneering experiments on water fl ow in pipes; 1 poise =1 g/(cm-s). Thekinematic viscosity ( ν ) unit is the stokes, named after G. G. Stokes, a British physicist whoin 1845 helped develop the basic partial differential equations of fl uid momentum; 1 stokes =1 cm 2 /s. Water at 20 ° C has μ ~~ 0.01 poise and also ν ~~ 0.01 stokes. Express these resultsin ( a ) SI and ( b ) BG units.arrow_forwardCase 1: Material system without density and viscosity differences Though unlikely in real life, in this case, we assume that all of the material in the homogenizer is of the same density and viscosity. Thus, only one set of material parameters are mentioned (density, ρ; dynamic viscosity, μ). The important parameters are listed as follows: Target quantity : Mixing time, θ Geometric parameters : Stirrer diameter, d Material parameters : Density, ρ Dynamic viscosity, μ Process-related parameters : Stirrer speed, n 1.1) Write out the relevance list for Case 1. 1.2) Generate the pi-set for this case. 1.3) Write out the appropriate pi (π) numbers from the generated pi-set. 1.4) Identify the established dimensionless numbers from the derived pi (π) numbers. 1.5) Write the possible relationship of the dimensionless numbers for Case 1.arrow_forwardThe differential change in pressure p close to the surface of a static fluid is given by the following expression:dp/dy = -3Ap2,where A is a constant, with units of 1/(atm•m), and p is the pressure in atm. The pressure at the surface of the fluid is p(0) = 1 atm, and the coordinate y here is positive upwards with origin at the surface. An absulute pressure gauge is placed at a depth 0.19m in the fluid. What would be the reading of the pressure gauge in units in atm? you can take the constant A=1(atm.m)^-1arrow_forward
- To measure the density of a stone, a digital scale and a beaker cup filled with water are used. The balance is used to measure the mass of the stone, while the beaker is used to measure the volume of the stone. It is known that the digital balance has a resolution of 0.1 g and that the beaker cup has a resolution of 5 ml. Repeated mass measurements return the following values: 250.0 g; 249.9 g; 250.3 g; 249.6g; 250.1 g; 249.7g; 250.4 g; 250.0 g; 248.8 g; 250.2 g The volume is measured only once. Placing the stone in the beaker, a volume of displaced water equal to 50 ml is measured. Using a k=2.5, check if the density of the stone is compatible or out of line with the value ρ = (4910 ± 65) kg.m-3 (a) none of the above (b) the values are compatible (c) missing data to perform the compatibility test (d) the values are discrepantarrow_forwardThe 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 marrow_forwardA company makes electrical resistors. The perfect resistor has a value of 400 ohms. A sample of 2000 resistors was tested and found to have a mean of 391.5 ohms and a standard deviation of 22.5 ohms. Assuming a normal distribution:a. How many resistors in the sample will have more than 440 ohms of resistance?b. How many resistors in the sample will have less than 360 ohms of resistance? note: you can use the frequency distribution table picture I attached.arrow_forward
- The temperature of an experimental heated enclosure is being ramped up from 80 to 450°F at the rate of 19°F/min. A thermocouple, embedded in a Thermowell for protection, is being used to monitor the oven temperature. The thermocouple has a time constant of 84 s. At t = 10 min, what is the difference between the actual temperature and the temperature indicated by the thermocouple? Final answer in whole number. Please show your complete solution and write readable.arrow_forwardRefer 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.…arrow_forwardIn 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.arrow_forward
- The Reynolds number is a dimensionless group defined as follows for a liquid that flows through a pipe: Re = Dvρ / μ where D is the diameter of the pipe, v is the velocity of the fluid, ρ is its density and µ its viscosity. When the Reynolds number value is less than 2100, the flow is laminar, that is, the liquid it moves in lines of smooth flow. For Reynolds numbers greater than 2100, the flow is turbulent, characterized by considerable agitation. Liquid Methyl Ethyl Ketone (MEK) flows through 2067 '' ID tubing and through an average velocity of 0.48 ft / s. If the fluid temperature is 20 ° C, the density of the MEK The liquid is 0.805 g / cm and the viscosity is 0.43 cP (1 cP = 1.00 x 10 kg / (m-s)]. Determine the Reynolds number for MEK flow conditions. (Round the final result to a whole number without decimals).arrow_forwardPLEASE ANSWER THEM ALL FOR AN UPVOTE. THANK YOU. Given: Pi constant to be used: 3.14159 Capillary tube: radius = 0.02 cm; length = 9 cm; pressure = 0.7 mmHg Liquid sample: density = 4 ml; time of flow = 4.5 seconds Ans. the ff questions. •What is the pressure in MKS unit? •What is the pressure in CGS unit? •What is the viscosity of the liquid? • If the weight was given as 8.5 grams, what will be the density of the liquid? •What is the kinematic viscosity of the liquid? •What is the fluidity of the liquid?arrow_forwardCalorimeters are devices that are commonly used to measure the heating value of fuels. For example, a Junkers flow calorimeter is used to measure the heating value of gaseous fuels. A bomb calorimeter, on the other hand, is used to measure the heating value of liquid or solid fuels, such as kerosene, heating oil, or coal. Perform a search to obtain information about these two types of calorimeters. Write a brief report discussing the principles behind the operation of these calorimeters.arrow_forward
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