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1. graphically verify Moseley's law for the K beta1 lines of Cu, Mo, and W.
2. (a)Calculate the mass an linear absorption coefficients of air for Cr K alpha radiation. Assume that air contains 80 % nitrogen and 20 % oxygen by weight and has a density of 1.29*10^-3 g.cm^3.
(b) Plot the transmission factor of air for Cr K alpha radiation and a path length of 0 to 20 cm.
3. Suppose that a nickel filter is required to produce an intensity ratio of Cu K alpha to Cu K beta of 100/1 in the filtered beam. Claculate the thickness of the filer and the transmission factor for the Cu K alpha line.
a 50 cm long 800 w electric resistance heating element with diameter .5 cm and surface temperature 120c is immersed in 60 kg of water temperature to 80c. also determine the convection heat transfer coefficients at the beginning and at the end of t..
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