Exam (elaborations)
Phys 151 Certification Exam Questions and CORRECT Answers
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Your center of mass (COM) is appox. @ your belly button. When you lift a barbell over your head, what happens to the center of mass of your body + barbell?the COM moves higher than your belly button but below the barbell The deltoid muscle must exert a very large force to life the arm. Which o...
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