what is the mechanical advantage of screw
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The production of new living organisms by combining genetic information from two individuals of different types (sexes). In most higher organisms, one sex (male) produces a small motile gamete which travels to fuse with a larger stationary gamete produced by the other (female).
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Like the other simple machines a screwcan amplify force; a small rotational force (torque) on the shaft can exert a large axial force on a load. The smaller the pitch (the distance between thescrew's threads), the greater themechanical advantage (the ratio of output to input force).
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