Block A weighs 50 N and Block B weights 30 N. Once block B is set into downward motion, it descends 5 m at a constant speed. Calculate the coefficient of kinetic friction using the work-energy theorem.

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igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods

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