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004 10.0 points Which of the statements A. If the effort force is less than the resis tance force, the mechanical advantage is less than 1
B. A third-class lever requires a larger effort force for a given resistance force C. The mechanical efficiency of a machine is decreased by reducing friction within the machine. is/are true? 1. C only 2. None is true. 3. A and C only 4. All are true. 5. A and B only 6. A only 7. B only 8. B and C only
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