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Question
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
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Solution
The fulcrum in the centre, the load on one side and the effort on the other side make a lever of the first order.
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An opener
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the second order.
