Uses and needs of machines
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Simple machines are useful because they reduce effort or extend the ability of people to perform tasks beyond their normal capabilities. Simple machines that are widely used include the wheel and axle, pulley, inclined plane, screw, wedge and lever.
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the uses of machine is in the image
the needs of machine are
A machine (or mechanical device) is a mechanical structure that uses power to apply forces and control movement to perform an intended action
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