... starting now! Suppose you have collected the set of data below by measuring the amount of time it takes for a small steel ball to fall from a height of 1.5 m to the ground. Fall Time (s) Height (m) 1.5 0.66 1.5 1.5 1.5 1.5 What value would you report if I asked you for the fall-time of this small steel ball from a height of 1.5 m? (Hint: It should look like t± dt.) 0.66 s 0.17 s 1.5 s 0.65 0.49 0.53 0.55 0.58 0.09 s 0.55 s + 0.17 s

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Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.