In a Young's double-slit experiment the separation distance y between the second-order bright fringe and the central bright fringe on a flat screen is 0.0182 m,when the light has a wavelength of 425 n In a Young's double-slit experiment the separation distance y between the second-order bright fringe and the central bright fringe on a flat screen is 0.0182 m, when the light has a wavelength of 425. Ff = 0.0750.225 N.cos34.0° The frictional force is parallel with the travel down the slide, so the work is given by Wf = Ff.4.10 m The result that gives you has the units Joules. All those Joules are in the form of heat. B) The downslope component of the girl's weight is 225N.sin34. Gravity does work given by Wg = 225N.sin34.4.10 m.
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