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(a) List several advantages and disadvantages of using transparent polymeric mate- rials for eyeglass lenses.
(b) Cite four properties (in addition to be- ing transparent) that are important for this application.
(c) Note three polymers that may be can- didates for eyeglass lenses, and then tabu- late values of the properties noted in part (b) for these three materials.
Four kilograms of water initially at 200 degree Celsius and 0.5 MPa undergo an isothermal, internally reversible compression process to the saturated liquid state. Determine the work and heat transfer involved in the process (in kJ). Sketch the proce..
4 kgs of saturated liquid water is heated in a steam boiler at 2 mpa to an outlet temperature of 250 c. determine the
the pump on the right supplies energy to the flow such that the upstream pressure in the 18-in. pipe is 25 psia and the
a symmetrical wedge having a total vertex angle of 60 degrees is traveling at mach number of 3 at an altitude of 15 km.
Three cables are used to tether a balloon as shown. Determine the vertical force P exerted by the balloon at A knowing that the tension in cable AD is 481 N. Use a matrix linear equation solution method.
An autoclave contains 1000 cans of pea soup. It is heated to an overall temperature of 100°C. If the cans are to be cooled to 40°C before leaving the autoclave, how much cooling water is required if it enters at 15°C and leaves at 35°C? The speci..
a rigid tank is divided into two equal parts same volume by a partition. initially one side of the tank is filled
An ideal gas having a constant specific heat undergoes a reversible polytropic expansion with exponent, n = 1.4. If the gas is carbon dioxide will the heat transfer for this process be positive, negative, or zero?
1. What is the distinction between dye and pigment colorants?
a solar collector is used to dry biomass in a storage bin. outside air at 35o and 60 rh enters the collector and is
the flow rate of liquid metal into the downsprue of a mold 1 ls. the cross-sectional area at the top of the sprue 800
Find Positive Limit Load and Positive Ultimate Limit Load of Given Aerobatic Aircraft-Max Gross Weight = 10,000 lb.4.Find Maneuvering speed (Va) of given aerobatic aircraft W=10,000 lb.
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