Our muscles can act with our bones to form lever systems. The lever system that allows a bicep curl would be considered a and the lever system that allows you to lift your head from your chest would be considered a . A 1st class lever; 2nd class lever B 2nd class lever; 1st class lever C 1st class lever; 3rd class lever D 3rd class lever; 1st class lever
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Our muscles can act with our bones to form lever systems. The lever system that allows a bicep curl...
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