An athlete whirls in a 7kg hammer tied to the end of a 1.3m chain in a horizontal circle. The hammer makes 1 revolution in 1sec. What is the centripetal acceleration of the hammer and what is the tension in the chain?

acceleration on the specific herditary disorder

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.