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Can you help with my Precalculus? How much impulse stops a 56-kg carton sliding at 4.0 m/s when it meets a rough surface? DNA duplicates during S phase, but it duplicates in its chromatin form. Are the two chromatin strands still connected at the centromere? What laboratory did Darwin use to prove his theory about the "Origin of Species" and how long did it take to prove his theory? Show that the following pair of functions is of the same order: 3x + 2log(x) + 4 and x.?