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Social Studies, 26.09.2019 16:30 crawford184232323234
What distinguishes first class levers from both second and third class levers? a. the fulcrum is between the load and effort. b. there is a fulcrum on both sides of the load. c. greater effort is required to move the load. d. the first class lever is not found in the human body. select the best answer from the choices provided.
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97 points what types of changes have been made in the united states to protect people from earthquakes? a. communities are no longer located along fault lines. b. building codes ensure that structures can withstand shaking. c. warnings go off when an earthquake is expected, and people evacuate the area. d. barriers have been built to prevent flooding by a tsunami.
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What distinguishes first class levers from both second and third class levers? a. the fulcrum is be...
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