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Please answer ASAP!!! 12. You want to use a lever to lift a 2000 N rock. The maximum force you can exert is 500 N. Draw a lever that will allow you to lift the rock. Label the input force, output force, fulcrum, input arm, and output arm. Specify measurements for the input and output arms. State the mechanical advantage of your lever. 13. A rope and pulley system is used so that a 20 N force can lift a 60 N weight. What is the minimum number of ropes in the system that must support the weight?
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