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An X-ray beam has a wavelength of 2.0 × 10−9 m. Calculate the frequency of the beam. Round the final answer to the nearest whole number.? Can someone please tell me what statistical tests in SPSS to use for these questions? What are the 6 component (feature) level DFA principals? If csc(x) =7, for 90 What will be the hose diameter in the below question?