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(a)
Interpretation:
The reason for which the aluminium is used for airplane bodies is to be explained.
Concept Introduction:
Aluminum is soft, non-magnetic and ductile metal which also forms an alloy by melting with copper silicon.
(b)
Interpretation:
The reason for polyurethane to be used for alignment of teeth is to be explained.
Concept Introduction:
Polyurethane is a polymer made up of organic units by combining units of urethane. The polyurethane is a thermosetting polymer which does not melt on heating.
(c)
Interpretation:
The properties of steel making it useful for ball bearing in the bicycles wheel hub are to be explained.
Concept Introduction:
Steel is one of the important engineering and construction materials. It is an alloy of iron and carbon where, carbon is less than 1%.
(d)
Interpretation:
The reason behind using polyurethane terephthalate for water bottles is to be explained.
Concept Introduction:
Polyurethane terephthalate is the most common thermoplastic polymer used in containers for liquids and foods. It is strong, lightweight plastic used in storage containers for foods and beverages, soft drinks, water, etc.
(e)
Interpretation:
The reason for the wine bottles to be made up of glass is to be explained.
Concept Introduction:
Glass bottles are chemical free, hence, there is no chemical leeching. They are easy to clean. Glass does not react with any other substance.
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Chapter 1 Solutions
Essentials Of Materials Science And Engineering
- Please answer 1, 2 and 3 on the endarrow_forward56 Clamps like the one shown are commonly used in woodworking applications. This clamp has the dimensions given in the table below the figure, and its jaws are mm thick (in the direction perpendicular to the plane of the picture). a.) The screws of the clamp are adjusted so that there is a uniform pressure of P = 150 kPa being applied to the workpieces by the jaws. Determine the force carried in each screw. Hint: the uniform pressure can be modeled in 2-D as a uniform distributed load with intensity w = Pt (units of N/m) acting over the length of contact between the jaw and the workpiece. b.) Determine the minimum vertical force (parallel to the jaws) required to pull either one of the workpieces out of the clamp jaws. Use a coefficient of static friction between all contacting surfaces of μs = 0.56 and the same clamping pressure given for part (a). 2013 Michael Swanbom A B C a Values for dimensions on the figure are given in the following table. Note the figure may not be to scale.…arrow_forwardDetermine the force in each member of the space truss given F=5 kN. Use positive to indicate tension and negative to indicate compression. F E Z -2 m. B 3 m C 5 m 3 m A -4 m. AB = KN FAC = FAD = KN KN KN FBC = KN FBD FBE = = KN Farrow_forward
- Please explain step by step and show all the formula usedarrow_forwardWhen the FCC added Color Television to the Industry Standards, they went with the system developed in the 1940s by Peter Goldman for CBS. Question 15 options: True False Part of the reason that many critics disliked 1950s gameshows was the fact that gameshows offered one of the few opportunities to see unscripted interactions with "real" (average/non-famous) people on television. Question 16 options: True False The Andy Griffith Show is an example of the "rural revival" shows that become enormously popular on 1960s American television. Question 19 options: True False During the Network Era, the hours before primetime each day were exclusively devoted to locally-produced programming, not programming dictated by an affiliate station's parent network. Question 20 options: True Falsearrow_forwardPlease answer 1 and 2 on the endarrow_forward
- By using the yield line theory, determine the moment (m) for an isotropic reinforced concrete two- way slab shown in figure under a uniformly distributed load. Using moment method 5 2 7.0m 1 A I c.g. * B c.g 5 2 B c. g. ㄨˋ A A 2.5 2.0 2.5 5.0marrow_forwardAlthough color television was not added to the industry standard until 1956, CBS had been broadcasting selected special events in color as early as 1950. Question 1 options: True False Two key factors in creating the Network Era of American television were the FCC licensing freeze and ______________. Question 4 options: The Quiz Show Scandals Habitual Viewing Operation Frontal Lobes Drop-In Viewing Least Objectionable Programming was designed to embrace the public service-oriented vision of using television to elevate mass culture and enrich viewers. Question 6 options: True False By the end of the 1950s, all three remaining networks (NBC, CBS, & ABC) were broadcasting their entire nightly programming schedule in full color. Question 9 options: True Falsearrow_forwardA short brass cyclinder (denisty=8530 kg/m^3, cp=0.389 kJ/kgK, k=110 W/mK, and alpha=3.39*10^-5 m^2/s) of diameter 4 cm and height 20 cm is initially at uniform temperature of 150 degrees C. The cylinder is now placed in atmospheric air at 20 degrees C, where heat transfer takes place by convection with a heat transfer coefficent of 40 W/m^2K. Calculate (a) the center temp of the cylinder, (b) the center temp of the top surface of the cylinder, and (c) the total heat transfer from the cylinder 15 min after the start of the cooling. Solve this problem using the analytical one term approximation method. (Answer: (a) 45.7C, (b)45.3C, (c)87.2 kJ)arrow_forward
- Determine the figure of merit for both DSB AM and FM, provided that the modulating signal is a single-tone signal.arrow_forward+ Preemphasis LHS R signal L RHS signal Frequency doubler Pilot tone (a) + Preemphasis Composite baseband spectrum L+R Pilot tone L-R (DSB-SC) + FM modulator f (kHz) (b) 15 19 23 38 53 Lowpass filter Deemphasis + L Audio amplifier FM discriminator Narrowband filter Frequency doubler Bandpass R Audio ✗ Deemphasis + filter amplifier (c) and (c) FM stereo receiver. FIGURE A.25 FM stereo broadcasting: (a) FM stereo transmitter, (b) spectrum of FM stereo signal,arrow_forward4-3) Similar to Lathi & Ding, Prob. P.4.2-3 For a DSB-SC signal g(t) = 2m(t)cos(4000) transmitting each of the following messages, (a) write an expression for G(f) and (b) sketch the magnitude spectrum |G(f)], specifying the FWHM (full width at half-maximum) of any spectrum peaks. a) m(t) = sinc²(100-50л) b) m(t)=400e-80,000r²arrow_forward
- MATLAB: An Introduction with ApplicationsEngineeringISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncEssentials Of Materials Science And EngineeringEngineeringISBN:9781337385497Author:WRIGHT, Wendelin J.Publisher:Cengage,Industrial Motor ControlEngineeringISBN:9781133691808Author:Stephen HermanPublisher:Cengage Learning
- Basics Of Engineering EconomyEngineeringISBN:9780073376356Author:Leland Blank, Anthony TarquinPublisher:MCGRAW-HILL HIGHER EDUCATIONStructural Steel Design (6th Edition)EngineeringISBN:9780134589657Author:Jack C. McCormac, Stephen F. CsernakPublisher:PEARSONFundamentals of Materials Science and Engineering...EngineeringISBN:9781119175483Author:William D. Callister Jr., David G. RethwischPublisher:WILEY
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