Physics, 31.10.2019 01:31 milkshakegrande101
Anarrow single slit is illuminated with angle infrared laser with λ = 1152 nm. the center of the tenth dark band (minimum) lies at the angle of 6° off the central axis.
(a)- what is the width of the slit?
(b)-how does this angle change if we immerse the whole experiment in water? (n = 1.33).
Answers: 3
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Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2
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The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm
Answers: 3
Anarrow single slit is illuminated with angle infrared laser with λ = 1152 nm. the center of the ten...
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