What best describes the cosmic microwave background radiation? a. existing at the 'red' end of the light spectrum. b. moving towards us rapidly. c. low energy, a few degrees above 0 kelvin d. very high energy, millions of kelvins.
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The simply supported beam consists of a w410 × 60 structural steel wide-flange shape [e = 200 gpa; i = 216 × 106 mm4]. for the loading shown, determine the beam deflection at point c. assume p = 69 kn, w = 79 kn/m, lab = lbc = 1.3 m, lde = lcd=1.6 m, ma = 168 kn-m.