write diffrence between :
i. Simple machine and complex machines
ii. Scissors and fishing rod
iii. pulley and wheel and axel
iv. screw and wedge
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Explanation:
Simple Machine: Any of various devices that function in a manner basic to any machine, such as a lever, pulley, wedge, screw, or inclined plane. Complex Machine: A device consisting of two or more simple machines working together. ... You push a screw into a surface by turning it while pressing down on the head.
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