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A portable photometer with a linear response to radiation registered 63.8 μA with the solvent in the light path. The photometer was set to zero with no light striking the detector. Replacement of the solvent with an absorbing solution yielded a response of 41.6 μA. Calculate
(a) The percent transmittance of the sample solution.
(b) The absorbance of the sample solution.
(c) The transmittance to be expected for a solution in which the concentration of the absorber is one third that of the original sample solution.
(d) The transmittance to be expected for a solution that has twice the concentration of the sample solution.
A 50 x 50 cm duct is 10 m in length. Nitrogen enters at M1 = 3.0 and leaves at M2 = 1.7, with T2 = 280 K and P2 = 7 x 104 N/m2. Find the static and stagnation conditions at the entrance.
At the proportional limit, a 30 mm wide × 12 mm thick bar elongates 2.0 mm under an axial load of 41.5 kN. The bar is 1.5-m long. If Poisson’s ratio (ratio between longitudinal and lateral deformations) is 0.33 for the material, determine:
A 3in diameter can which is 6in tall contains R134a at 70oF. Initially the can is half full, by volume, of liquid R134a. The can is connected to and air conditioning system and is used to fill up that system. Knowing only vapor R134a leaves the conta..
a cylindrical specimen of an aluminum alloy has a youngs modulus of 59gpa original length of 250mm length at fracture
What is the yield strength and ultimate tensile strength of the material. What are the engineering strain and true strain when the specimen is elongated to 0.2 inches
hot air is contained in a vertical frictionless piston-cylinder device.the piston has a mass of 4 kg and a
consider a rigid tank with a partition such that there are two equal volumes which are known. on one side has water at
consider the photovoltaic solar panel of example 3.3. the heat transfer coefficient should no longer be takento be a
consider steady flow of a constant property fluid in a long duct formed by two parallel planes. consider a point
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a 3 cm thick stainless steel thermal diffusivity 0.0000044 k16.3 plate initially at 500degc is suddenly exposed to
A 100 kg body falls from rest from a height of 100 m above the ground. Calculate its maximum velocity when it hits the ground. (a) Use the maximum value for gravity, (b) use the minimum value for gravity, and (c) use the standard value for gravity.
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