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Determine the cutting speed(cs) of the shaft mm/min. Option C. 50 inch diameter. (d) the ratio of minimum friction force to friction force acting when the body is in motion (e) ratio of static and dynamic friction. The process of evolution of a species whereby characteristics which help individual organisms to survive and reproduce are passed on to their offspring and those characteristics which do not help are not passed on is called (a) Artificial selection (b) Speciation (c) Hybridization (d) Natural selection.
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