A 1 .5-Me V neutron in a heavy water reactor collides with an 2H nucleus. Calculate the maximum and average changes in lethargy in such a collision.

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

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Aball horizontally thrown from a cliff at 8m/s