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Physics, 12.11.2019 21:31 Tthhdd5790
1. a fixed pulley is a machine that increases the effort force.
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2. a movable pulley is fixed at all points.
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3. a block and tackle consists of both movable and fixed pulleys.
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4. a lever is a bar that can pivot on a fixed point.
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5. a wedge is a machine that changes the direction of the force.
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Answers: 3
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1. a fixed pulley is a machine that increases the effort force.
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