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The half-life , specific to each nuclide, can be accurately measured on a pure sample, and is known to be independent of the chemical composition of the sample, temperature and pressure.Through analysis, a bone fragment is determined to contain 13% of its original carbon-14.Even though they both said nice things to each other, the director of the show tampered the video tape by taking out the nice bits, and made it sound like it was horribly mean.That's when Raven and Chelsea argue but later reconcile when Eddie plays the nice version thus exposing director's scheme.

"The Dating Shame" is the seventeenth episode of the second season of Disney Channel's That's So Raven and the thirty-eighth episode overall. Raven and Chelsea go on a TV dating game show called Termi-Date for a chance to date a cute guy named Chad.Given isotopes are useful for dating over a range from a fraction of their half life to about four or five times their half life.Symbolically, the process of radioactive decay can be expressed by the following differential equation, where N is the quantity of decaying nuclei and k is a positive number called the exponential decay constant.Meanwhile, Cory lies about a babysitter being with him, so that he can have the house to himself.Cory is happy at first, until he sees a late-night horror movie called Eye of the Zombie 2, and he becomes scared.In the end, Eddie forgives Raven, and she gives Eddie back his hosting duties.

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