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A compound machine is a combination of at least two simple machines. Simple machines can be a lever, a wedge, a while + axle, an incline plane, a pulley, and a screw.
There are many examples of compound machines. One of them is a showel that combines a wedge (the scoop part of shovel) and a lever (the handle to transfer the force to lift).
A much more complex compound machine is a bicycle, comprising simple machines ranging from wheels and axles, to screws, and levers (think of the pedals).
Any large factory that takes multiple machines to manufacture a singular product.
Answer:
according to newton's first law of motion, when balanced forces are applied to an object:
- an object at rest stays at rest
- an object in motion continues its motion with a constant speed
